Decision trees, approval chains and step-by-step processes.
User sign-up flow
A branching sign-up path with an existing-account check.
MermaidExpense approval workflow
Multi-tier approval with an amount threshold.
MermaidEmployee onboarding
Day-one steps across IT, HR and the manager.
MermaidSupport ticket triage
Severity routing from intake to resolution.
MermaidOn-call incident decision tree
What to check first, and every path ending somewhere.
MermaidContent publishing pipeline
Draft, review and publish with a revision loop.
MermaidE-commerce returns process
Customer return request through refund or exchange.
MermaidGeneric troubleshooting decision tree
A reusable fault-finding tree: reproduce, isolate, check recent changes, apply a fix or escalate — for help desks, field engineers and anyone writing a runbook.
MermaidPurchase request approval
A purchase requisition from request to purchase order, with budget checks, amount-based approval tiers and procurement review — for finance teams and approvers.
MermaidPassword-less login decision flow
How an app chooses between passkeys, magic links and one-time codes at sign-in, with fallbacks and step-up checks — for product and identity engineers.
MermaidCustomer complaint handling
A complaint from first contact to resolution and root-cause review, with severity routing, remedy approval and escalation to an ombudsman — for service teams.
MermaidDocument approval with escalation
A document routed through sequential reviewers with SLA timers, reminders and automatic escalation when approvers do not respond — for policy, legal and quality teams.
MermaidIT service request fulfilment
An ITIL-style service request from the self-service portal through approval, automated or manual fulfilment and user confirmation — for IT service desks.
MermaidConference talk submission review
A call for papers from submission through blind review, programme committee decisions and speaker confirmation — for conference organisers and programme chairs.
MermaidSoftware installation troubleshooting
A step-by-step decision tree for failed application installs: system requirements, permissions, disk space, conflicts and installer logs — for desktop support staff.
MermaidUML sequence diagrams for APIs and protocols, class diagrams for domain models, and state machines for orders, tickets and devices.
JWT refresh token sequence diagram
Shows a single-page app calling an API with an expired access token, refreshing it with a rotating refresh token, and retrying the request; used by backend and auth engineers.
MermaidAPI gateway request sequence diagram
Traces one REST call from a client through an API gateway, auth service, backend service, cache and database, including the cache-miss path; useful for API design reviews.
MermaidCard payment with 3-D Secure sequence diagram
Shows an online card payment through a Stripe-style payment processor with a 3-D Secure challenge from the issuing bank; used by checkout and payments developers.
MermaidWebhook delivery with retries sequence diagram
Shows a platform signing and delivering a webhook event, retrying with exponential backoff on failure and parking it in a dead-letter queue; used by integration engineers.
MermaidWebSocket chat message sequence diagram
Shows a chat message travelling from sender to recipients over WebSockets, via a chat server, pub/sub broker and message store, with offline push; used by real-time app developers.
MermaidSAML SSO login sequence diagram
Shows SP-initiated single sign-on with SAML 2.0, from redirect to the identity provider through assertion validation and session creation; used by IT and identity teams.
MermaidLLM tool call with RAG sequence diagram
Shows an AI assistant request where the model retrieves documents from a vector store and calls an external tool before answering; used by teams building LLM applications.
MermaidS3 presigned URL upload sequence diagram
Shows a browser uploading a file straight to S3 using a presigned URL from the backend, then post-upload processing via an event; used by web and cloud developers.
MermaidTwo-phase commit sequence diagram
Shows a transaction coordinator running the prepare and commit phases of two-phase commit across three resource managers, including the abort path; used for distributed systems teaching.
MermaidMFA login with TOTP sequence diagram
Shows a password login followed by a time-based one-time password check, lockout after repeated failures, and session issue; used by product security and backend teams.
MermaidE-commerce domain model class diagram
Models customers, carts, orders, line items, products, payments and shipments for an online store, with multiplicities; used by developers designing a shop backend.
MermaidBanking accounts and transactions class diagram
Models bank customers, account types, transactions and cards with inheritance for savings and checking accounts; used in fintech design and object-oriented modelling courses.
MermaidLibrary management class diagram
Models a library with books, physical copies, members, loans, reservations and fines, showing how borrowing works; a classic object-oriented design exercise for students.
MermaidHospital patient domain class diagram
Models patients, doctors, appointments, admissions, wards, prescriptions and medical records for a hospital information system; used by health-tech developers and analysts.
MermaidLearning management system class diagram
Models courses, modules, lessons, quizzes and enrolments in an online learning platform, with instructor and student roles; used by edtech product and engineering teams.
MermaidObserver and strategy design patterns class diagram
Shows the Gang of Four observer and strategy patterns together: a subject notifying observers and a context delegating to interchangeable strategies; used to teach design patterns.
MermaidPayroll system class diagram
Models employees, salaried and hourly pay types, timesheets, payslips, deductions and pay runs for a payroll system; used by HR-tech developers and in OO design courses.
MermaidParcel shipment tracking state machine
Shows the states of a parcel from label creation through transit, out for delivery, failed attempts, delivery or return to sender; used by logistics and e-commerce developers.
MermaidPayment intent state machine
Shows the lifecycle of an online payment from creation through authentication, authorisation, capture, refunds and failure; used by developers integrating card payment APIs.
MermaidTraffic light controller state machine
Shows a road junction traffic light controller cycling through red, green and amber, with a pedestrian request and a flashing fault mode; a classic embedded systems example.
MermaidDocument approval state machine
Shows a document moving from draft through peer review, manager approval and publishing, with rejection, rework and archiving; used for policy, contract and content workflows.
MermaidVending machine state machine
Shows a snack vending machine accepting coins or card, selecting a product, dispensing, giving change and handling sold-out and refunds; a common state machine teaching example.
MermaidKubernetes pod lifecycle state machine
Shows a Kubernetes pod moving through Pending, ContainerCreating, Running, CrashLoopBackOff, Succeeded, Failed and Terminating; used by DevOps and platform engineers debugging workloads.
MermaidElevator controller state machine
Shows an elevator car controller handling idle, moving up or down, door opening and closing, obstruction detection and emergency stop; used in embedded and systems design courses.
MermaidIntegration landscapes, microservices and C4-style context diagrams.
Order-to-cash integration landscape
Six systems, left to right — drop in real vendor logos afterward.
MermaidMicroservices with a message queue
Services decoupled through a broker instead of calling each other directly.
MermaidOne request through a stack
Where a request actually goes, caches and queue included.
MermaidSystem context diagram (C4-style)
One system, its users and the external systems it depends on.
MermaidEvent-driven architecture
Producers, an event bus, and independent consumers.
MermaidThree-tier web application
The classic web, app and database tier split.
MermaidMulti-tenant SaaS architecture
Shared services with per-tenant data isolation.
MermaidAgentic AI architecture with MCP
An agent host calling tools and data through Model Context Protocol servers, with planning, memory, human approval and audit — the pattern behind current AI agents.
MermaidComposable commerce (MACH) architecture
Microservices, API-first, cloud-native SaaS and headless: best-of-breed commerce, CMS, search and payments behind a frontend and orchestration layer.
MermaidEnterprise event mesh architecture
Connected event brokers across on-prem, clouds and SaaS so events route anywhere with a shared catalog and governance.
MermaidE-commerce platform architecture
Storefront, catalogue, cart, checkout, payments, search and fulfilment services around an event bus — the reference picture for a modern online store.
MermaidReal-time dispatch system architecture
Location ingestion, geo-indexing, matching and pricing for a ride-hailing or delivery platform.
MermaidReal-time chat application architecture
Presence, message fan-out, persistence and push notifications for a Slack- or WhatsApp-style messaging product.
MermaidVideo streaming platform architecture
Upload, transcode, catalogue, recommendation and playback components of a Netflix/YouTube-style service.
MermaidHexagonal (ports & adapters) architecture
How a service isolates domain logic from HTTP, messaging and databases through ports and adapters — useful when explaining clean architecture to a team.
MermaidCQRS with event sourcing
Commands append events to an event store; projections build read models — the pattern for audit-heavy domains like banking and ledgers.
MermaidAPI gateway with backend-for-frontend
Separate BFFs for web, mobile and partners behind one gateway, with auth, rate limiting and aggregation.
MermaidService mesh architecture
Sidecar proxies handling mTLS, retries and telemetry between microservices, managed by a control plane.
MermaidNotification system architecture
A multi-channel notification platform: templates, user preferences, rate limiting, providers and delivery tracking.
MermaidURL shortener system design
The classic system-design interview: ID generation, redirect path, caching and click analytics.
MermaidDistributed rate limiter design
Token-bucket rate limiting at the gateway with a shared counter store, rules config and headers.
MermaidSite search architecture
Indexing pipeline, query service, ranking and analytics for an in-product search feature.
MermaidPayment gateway architecture
Tokenisation, routing across acquirers, 3-D Secure, idempotency and ledger — how a payments platform is structured.
MermaidIoT platform architecture
Device connectivity, rules engine, digital twin, time-series storage and apps for a connected-device product.
MermaidStrangler-fig migration from a monolith
Routing traffic from a legacy monolith to new microservices one capability at a time.
MermaidSaaS control plane & data plane
Separating tenant management, provisioning and billing from per-tenant runtime cells.
MermaidMobile app backend architecture
Auth, API, sync, push, feature flags, crash reporting and analytics behind a consumer mobile app.
MermaidAI assistant product architecture
An LLM-powered assistant with retrieval, tools, guardrails, memory and evaluation — the reference stack for GenAI features.
MermaidBooking & reservation system architecture
Availability search, holds with expiry, payment and confirmation for hotels, tickets or appointments.
MermaidMulti-region active-active architecture
Serving users from two regions at once with global routing, conflict-free replication and regional failover.
MermaidSAP, Salesforce, ServiceNow, Workday and ERP integrations through MuleSoft, SAP Integration Suite, Boomi, Azure Integration Services, Kafka and EDI — the integration landscapes enterprise architects draw.
SAP ↔ Salesforce integration via MuleSoft
API-led integration: Salesforce accounts, quotes and orders sync with SAP S/4HANA customers, pricing, sales orders and invoices through MuleSoft system, process and experience APIs.
MermaidSAP ↔ Salesforce via SAP Integration Suite (CPI)
SAP BTP Integration Suite iFlows moving business partners, materials, pricing and orders between S/4HANA and Salesforce, with Event Mesh for near-real-time updates.
MermaidSalesforce ↔ SAP ERP via Boomi
Boomi processes syncing accounts, products, quotes and order status between Salesforce and SAP ECC, with Master Data Hub for golden customer records.
MermaidAPI-led connectivity (three layers)
The system, process and experience API layering used by MuleSoft and most API programmes to decouple channels from back-ends.
MermaidEnterprise service bus (hub-and-spoke)
A classic ESB: adapters, canonical data model, routing, transformation and orchestration between legacy and packaged applications.
MermaidAzure Integration Services
API Management, Logic Apps, Service Bus, Event Grid and Functions connecting SaaS, SAP and on-prem systems.
MermaidSalesforce ↔ NetSuite via iPaaS (Celigo / Workato)
Quote-to-cash between Salesforce CPQ and NetSuite: customers, items, sales orders, fulfilments, invoices and payments synced by recipes.
MermaidServiceNow ↔ Jira bidirectional sync
Incidents escalated from ServiceNow to engineering in Jira with status, comments and attachments kept in sync both ways.
MermaidEDI / B2B trading partner integration
Purchase orders, advance ship notices and invoices exchanged with retailers and suppliers over AS2 or VAN, translated into ERP documents.
MermaidKafka Connect integration hub
Source and sink connectors turning Kafka into the integration backbone between databases, SaaS apps, the warehouse and search.
MermaidSAP to Snowflake data extraction
Getting SAP S/4HANA or ECC data into Snowflake: ODP/CDS extraction, SLT replication, or SAP Datasphere, landing into a modelled warehouse.
MermaidWorkday HCM ↔ SAP payroll & finance
Worker data from Workday to SAP payroll, and payroll postings back into the SAP general ledger, via Workday Studio or an iPaaS.
MermaidIntegration error handling & retry pattern
The reliability pattern every middleware flow needs: idempotency, retries with backoff, dead-letter queues, replay and alerting.
MermaidHybrid integration platform (cloud + on-prem)
Cloud iPaaS for SaaS integration, on-prem runtime agents next to legacy systems, managed file transfer and API management in one platform.
MermaidIngestion, transformation and warehouse loading diagrams.
Nightly ELT pipeline
Three sources, one loader, a warehouse and a transform step.
MermaidKafka event streaming pipeline
Producers into topics, consumed by stream processing and storage.
MermaidMedallion (bronze/silver/gold) warehouse
The standard lakehouse layering pattern.
MermaidBatch ETL to a data warehouse
Classic extract-transform-load with a staging area.
MermaidChange data capture (CDC) replication
Database changes streamed to a warehouse in near real time.
MermaidML feature engineering pipeline
Raw data to a feature store used by training and serving.
MermaidData pipeline with quality gates
Validation steps that can halt the pipeline before bad data lands.
MermaidKappa architecture
One streaming path for everything: an immutable log, stream processors for all transformations, and reprocessing by replaying the log instead of a separate batch layer.
MermaidBig data architecture (Hadoop ecosystem)
The classic on-prem big-data stack: HDFS, YARN, Hive, Spark, HBase, Kafka, Sqoop and Oozie, with Ranger security.
MermaidSpark big data processing platform
Object storage, Spark on Kubernetes, table formats, a metastore, a query engine and orchestration — the cloud-native successor to Hadoop.
MermaidReal-time analytics (Kafka, Flink, Pinot)
Sub-second user-facing analytics: events into Kafka, Flink enrichment and aggregation, Apache Pinot or Druid for serving, and a lake for history.
MermaidAWS real-time analytics
Kinesis Data Streams, Managed Service for Apache Flink, Firehose, OpenSearch, Timestream and Redshift streaming ingestion.
MermaidAzure real-time analytics
Event Hubs and IoT Hub into Fabric Real-Time Intelligence (Eventstream, Eventhouse/KQL), Stream Analytics, Data Activator and Power BI.
MermaidGoogle Cloud real-time analytics
Pub/Sub, Dataflow streaming, BigQuery streaming and continuous queries, Bigtable for serving, and Looker.
MermaidModern data stack
Managed ELT, cloud warehouse, dbt, semantic layer, BI, reverse ETL, orchestration and observability — the typical 2020s analytics stack.
MermaidStreaming lakehouse (Apache Iceberg)
Streams and batch landing in the same Iceberg tables, queried by several engines through one open catalog.
MermaidData fabric architecture
A metadata-driven layer over distributed sources: active metadata, knowledge graph, virtualisation, governance and self-service delivery.
MermaidLakehouse platform (Delta Lake)
Batch and streaming ingestion into bronze/silver/gold Delta tables with Unity Catalog governance and BI, ML and SQL consumers.
MermaidReal-time analytics pipeline
Clickstream events to sub-second dashboards: collection, validation, stream processing and OLAP.
MermaidReverse ETL to business tools
Warehouse models synced back into CRM, marketing and support tools so teams act on the same data.
MermaidData mesh with domain data products
Domain teams own and publish data products on a self-serve platform, governed by federated policies.
MermaidOrchestrated daily pipeline (Airflow DAG)
A daily DAG with sensors, parallel extracts, transforms, tests, and SLA alerting — how most batch pipelines are scheduled.
MermaidMLOps end-to-end pipeline
Data validation, training, registry, deployment and monitoring with automatic retraining.
MermaidLog collection & analytics pipeline
Application and infrastructure logs shipped, parsed, enriched, stored in tiers and searched.
MermaidCustomer 360 & identity resolution
Stitching customer identities across web, app, CRM and support into one golden record.
MermaidIoT telemetry data pipeline
Millions of device readings per minute: ingestion, downsampling, hot and cold storage, and fleet analytics.
MermaidPrivacy-aware data pipeline
Classification, pseudonymisation, consent filtering and deletion propagation built into the data platform.
MermaidLegacy warehouse to cloud migration
Moving from an on-prem warehouse to a cloud platform with parallel runs and reconciliation.
MermaidStreaming fraud detection pipeline
Transactions scored in milliseconds with streaming features, a model server and a case management loop.
MermaidMarketing attribution pipeline
Ad spend, sessions and conversions joined into multi-touch attribution for channel ROI.
MermaidData contracts between producers and consumers
Schema contracts enforced in CI and at runtime so upstream changes cannot silently break downstream pipelines.
MermaidETL job with retries & dead letters
Resilient batch processing: idempotent loads, retries with backoff, poison records and restart from checkpoint.
MermaidSnowflake cross-organisation data sharing
Publishing governed data to partners through secure shares and a data marketplace listing.
MermaidLambda architecture (batch + speed layer)
Combining a batch layer for accuracy and a speed layer for freshness behind one serving layer.
MermaidDocument processing (IDP) pipeline
Invoices and forms captured, OCRed, classified, extracted, validated and posted with human-in-the-loop review.
MermaidGeospatial data pipeline
Addresses and GPS points geocoded, joined to boundaries and tiled for map visualisation.
MermaidData observability & incident flow
Monitoring freshness, volume, schema and distribution across tables, and routing data incidents to owners.
MermaidEntity relationship diagrams from Mermaid, SQL DDL or DBML.
Procure-to-Pay (P2P) data model
Suppliers, requisitions, purchase orders, goods receipts, supplier invoices and payments, with the three-way match (PO, receipt, invoice) visible in the keys. Modelled on how ERPs such as SAP MM/FI and Oracle Purchasing structure it.
SQL DDLOrder-to-Cash (O2C) data model
Customers, credit limits, quotes, sales orders, deliveries, billing documents, receivables and cash application — the SD/AR side of an ERP, from quote to reconciled cash.
SQL DDLPlan-to-Produce data model
Demand forecasts, master production schedule, MRP planned orders, bills of materials, routings, production orders, confirmations and quality results — the PP/MES side of manufacturing.
SQL DDLRecord-to-Report (R2R) data model
Company codes, chart of accounts, ledgers, fiscal periods, journal entries, intercompany, reconciliations, consolidation and financial statement mapping — the general-ledger and close model behind SAP FI/CO or Oracle GL.
SQL DDLProduct Lifecycle Management (PLM) data model
Products, parts, revisions, engineering BOMs, CAD documents, change requests and change orders, suppliers, compliance and lifecycle states — the model behind Teamcenter, Windchill or Arena-style PLM.
SQL DDLSupply Chain Planning (SCP) data model
Locations, transport lanes, sourcing rules, demand plans, inventory policies, supply plans, capacity constraints and scenarios — the model behind IBP, Kinaxis or o9-style planning tools.
SQL DDLOrder schema (ER diagram)
Crow's-foot relationships and typed columns.
MermaidOrders schema from CREATE TABLE
Paste DDL you already have — keys and crow’s feet come across.
SQL DDLSnowflake star schema
A fact table and its dimensions, in Snowflake types.
SQL DDLSaaS project schema (DBML)
If your schema lives in DBML already, it comes straight across.
DBMLBlog / CMS schema
Posts, authors, categories and tags with a many-to-many join table.
SQL DDLInventory & warehouse schema
Products, warehouses and stock levels per location.
DBMLSocial app schema (users, posts, follows)
A self-referencing follows table alongside posts and likes.
SQL DDLSaaS subscription billing schema
Accounts, plans, prices, subscriptions, invoices, line items and payments — the core of any subscription billing system.
SQL DDLHotel reservation schema
Hotels, room types, rooms, rates, guests, reservations and stays — the data model behind a property management system.
SQL DDLLearning management system schema
Courses, modules, lessons, enrolments, quizzes and progress tracking for an e-learning platform.
DBMLHR information system schema
Employees, departments, positions, managers, compensation history, time off and reviews.
SQL DDLCore banking schema
Customers, accounts, double-entry transactions, cards, loans and statements for a retail bank or fintech.
SQL DDLTwo-sided marketplace ER diagram
Buyers, sellers, listings, orders, reviews, payouts and disputes in Mermaid ER form.
MermaidCRM schema
Companies, contacts, leads, deals, pipeline stages, activities and owners — a Salesforce/HubSpot-style data model.
DBMLProject management tool schema
Workspaces, projects, tasks with subtasks, assignees, labels, comments and time tracking — a Jira/Asana-style model.
SQL DDLFood delivery app schema
Restaurants, menus, customers, orders, couriers and delivery tracking for a DoorDash-style app.
SQL DDLInsurance policy & claims schema
Policyholders, policies, coverages, premiums, claims, claim payments and adjusters.
SQL DDLIoT device management schema
Organisations, sites, devices, firmware, telemetry rollups, alerts and commands.
DBMLEvent ticketing schema
Venues, seating, events, ticket types, orders, tickets and check-ins for a Ticketmaster-style platform.
SQL DDLLibrary management ER diagram
Books, authors, copies, members, loans, holds and fines as a Mermaid ER diagram.
MermaidManufacturing execution (MES) schema
Products, bills of materials, work centres, work orders, operations, lots and quality inspections.
SQL DDLMulti-tenant RBAC permissions schema
Tenants, users, roles, permissions, groups, resource grants and audit log for fine-grained access control.
DBMLClinic scheduling & billing schema
Practitioners, availability, appointments, services, invoices and insurance claims for a clinic.
SQL DDLData Vault 2.0 model
Hubs, links and satellites for customers, orders and products — the modelling pattern for auditable enterprise warehouses.
SQL DDLReal estate listings schema
Agencies, agents, properties, listings, photos, viewings, offers and saved searches.
DBMLAudit trail & soft-delete pattern
A reusable pattern: versioned rows, change history, soft deletes and an append-only audit log around core entities.
SQL DDLRide-hailing platform ER diagram
Riders, drivers, vehicles, trips, fares, payments, ratings and surge zones in Mermaid ER form.
MermaidE-commerce store with reviews & coupons schema
Customers, products, categories, orders, order items, product reviews, coupons and coupon redemptions for an online store.
SQL DDLAirline reservation schema
Airports, aircraft, flights, fares, passengers, bookings, tickets and seat assignments behind an airline reservation system.
SQL DDLRestaurant POS & reservations schema
Tables, reservations, menu items, modifiers, checks, check items and payments for a full-service restaurant point-of-sale system.
SQL DDLVideo streaming subscriptions schema (DBML)
Accounts, profiles, plans, subscriptions, titles, episodes and watch history for a Netflix-style streaming service.
DBMLJob board & applicant tracking schema (DBML)
Companies, recruiters, job postings, candidates, applications, interviews and offers for a job board with a built-in applicant tracking system.
DBMLGym membership & classes schema (DBML)
Members, membership plans, memberships, trainers, class types, scheduled classes, bookings and check-ins for a fitness club.
DBMLDeployment topologies, CI/CD pipelines and network zones.
CI/CD pipeline
Commit to production, with a gate before the deploy.
MermaidCloud VPC with public/private subnets
A load balancer in a public subnet, app and data tiers private.
MermaidKubernetes deployment topology
Ingress, services and pods across a cluster.
MermaidBlue-green deployment
Two production environments with traffic switching between them.
MermaidMulti-region disaster recovery
Primary and standby regions with replicated data.
MermaidServerless API architecture
API gateway, functions and a managed database — no servers to run.
MermaidNetwork security zones
DMZ, internal and restricted zones with firewalls between them.
MermaidAWS serverless web application
CloudFront, S3, API Gateway, Lambda, DynamoDB, Cognito, EventBridge and Step Functions — a fully managed AWS web backend with no servers to patch.
MermaidAWS modern data platform
DMS, Kinesis, Glue, S3 lakehouse with Iceberg, Lake Formation, Redshift, Athena, QuickSight and SageMaker.
MermaidAWS microservices on EKS
EKS with ALB ingress, Karpenter, App Mesh or Istio, Aurora, ElastiCache, MSK, Secrets Manager and CloudWatch.
MermaidAWS generative AI with Bedrock
A RAG assistant on Bedrock: Knowledge Bases over S3, OpenSearch Serverless vectors, Bedrock Agents with Lambda tools, and Guardrails.
MermaidAzure web application reference
Front Door, App Service or Container Apps, Azure SQL, Redis, Service Bus, Functions, Key Vault, Entra ID and Application Insights.
MermaidAzure modern data platform (Fabric)
Data Factory, Event Hubs, OneLake, Fabric Lakehouse and Warehouse, Purview governance, Power BI and Azure Machine Learning.
MermaidAzure microservices on AKS
AKS behind Application Gateway, with Dapr, Service Bus, Cosmos DB, Azure SQL, Key Vault, Azure Monitor and GitOps (Flux).
MermaidAzure OpenAI RAG chat
Azure OpenAI with AI Search hybrid retrieval over SharePoint and Blob content, Prompt Flow, content safety and Entra security trimming.
MermaidGoogle Cloud serverless app (Cloud Run)
Cloud Load Balancing, Cloud Run services, Firestore, Cloud SQL, Pub/Sub, Cloud Tasks, Identity Platform and Cloud Monitoring.
MermaidGoogle Cloud microservices on GKE
GKE Autopilot with Gateway API, Cloud Service Mesh, Spanner, Memorystore, Pub/Sub, Artifact Registry and Cloud Deploy.
MermaidGoogle Cloud generative AI (Vertex AI)
Gemini on Vertex AI with Vertex AI Search grounding, Agent Builder tools, BigQuery data and model evaluation.
MermaidMulti-cloud architecture (AWS + Azure + GCP)
Workloads split across three clouds with a common identity, network interconnect, observability and a single deployment pipeline.
MermaidAWS three-tier web app reference
Route 53, CloudFront, ALB, auto-scaling EC2 or ECS across two AZs, RDS Multi-AZ, ElastiCache and S3 — the classic AWS reference architecture.
MermaidAzure landing zone (hub-and-spoke)
Management groups, hub VNet with firewall and shared services, spoke VNets per workload, and policy guardrails.
MermaidGoogle Cloud serverless data platform
Pub/Sub, Dataflow, BigQuery, Cloud Composer and Looker in a serverless analytics stack.
MermaidGitOps delivery with Argo CD
Git as the source of truth: app repo CI builds images, a config repo is updated, and Argo CD syncs clusters.
MermaidInfrastructure as code (Terraform) workflow
Plan in pull requests, policy checks, approval and apply with remote state and drift detection.
MermaidInternal developer platform on Kubernetes
Developer portal, golden-path templates, CI/CD, secrets, observability and multi-tenant clusters.
MermaidObservability stack (metrics, logs, traces)
OpenTelemetry collectors feeding metrics, logs and traces backends, with dashboards, SLOs and alert routing.
MermaidDisaster recovery failover runbook
Declaring a regional disaster, promoting the standby, validating, and failing back — with RTO/RPO checkpoints.
MermaidContainer supply-chain security
Signed builds, SBOMs, vulnerability scanning and admission control from commit to cluster.
MermaidServerless event-driven processing
S3 uploads trigger functions, Step Functions orchestration, retries and notifications — fully managed.
MermaidCloud cost (FinOps) governance loop
Tagging, allocation, budgets, anomaly alerts and optimisation actions across teams.
MermaidMonorepo CI with affected-project builds
Only building and testing what changed in a large monorepo, with remote caching and parallel jobs.
MermaidHybrid cloud network architecture
On-prem data centre connected to AWS and Azure with dedicated links, transit hubs, DNS and centralised egress.
MermaidDatabase major-version upgrade with blue/green
Upgrading a production database with logical replication to a green cluster and a fast switchover.
MermaidEdge computing architecture
Workloads at edge locations with local processing, store-and-forward sync and central management.
MermaidSecrets management architecture
Central vault issuing dynamic, short-lived credentials to apps via workload identity, with rotation and audit.
MermaidPerformance & load testing pipeline
Nightly load tests against staging with baselines, regression detection and capacity reporting.
MermaidKubernetes autoscaling layers
How pod autoscaling, event-driven scaling and cluster autoscaling work together under load.
MermaidServer patch management cycle
Monthly OS patching across environments with staged rings, maintenance windows and compliance reporting.
MermaidBackup & restore strategy (3-2-1)
Snapshots, cross-region copies, immutable backups and regular restore tests.
MermaidOrg charts, customer journeys and business process maps.
Company org chart
A simple reporting-line hierarchy.
MermaidCustomer journey map
Awareness to loyalty, one path through the funnel.
MermaidSales pipeline / CRM stages
Lead to closed-won, with a closed-lost branch.
MermaidHiring process
Application through offer, with rejection points along the way.
MermaidCross-team handoff process
A request moving between three teams before it ships.
MermaidQuarterly OKR planning flow
From company goals down to team-level key results.
MermaidBusiness model canvas flow
The nine building blocks of a business model canvas connected as a value flow, from customer segments to revenue and costs — for founders and strategy workshops.
MermaidSWOT analysis to strategy
Turning a SWOT analysis into a TOWS strategy matrix, prioritised initiatives and an execution plan — for leadership teams and strategy consultants.
MermaidVendor selection & RFP process
Choosing a supplier through requirements, RFI shortlist, RFP, weighted scoring, demos and negotiation to contract award — for procurement and IT sourcing teams.
MermaidMergers & acquisitions integration
Post-deal integration from signing through Day 1 readiness, the 100-day plan and synergy tracking across people, systems and customers — for integration management offices.
MermaidBoard approval process
Taking a major decision to the board: proposal paper, committee review, board meeting vote, minutes and resolution — for company secretaries and executives.
MermaidChannel partner onboarding
Recruiting and enabling a reseller or channel partner: application, vetting, agreement, training, certification and first co-sell deal — for partner and alliance teams.
MermaidPricing & discount approval
How a sales quote with a non-standard discount moves through deal desk, finance and executive approval based on margin thresholds — for sales operations and CPQ admins.
MermaidQuarterly business planning cycle
The quarterly planning rhythm: review last quarter, refresh forecasts, set priorities and budgets, align teams and track progress weekly — for operators and finance partners.
MermaidPhysical and logical network topologies.
Small office LAN
Router, switch and endpoint devices.
MermaidHub-and-spoke WAN topology
Branch offices connecting through a central hub.
MermaidLoad-balanced web tier
A balancer distributing across redundant web nodes.
MermaidSite-to-site VPN
Two office networks joined over an encrypted tunnel.
MermaidDMZ network topology
Public-facing services isolated from the internal network.
MermaidCDN edge topology
Requests served from the nearest edge before hitting origin.
MermaidCampus network: core, distribution & access
A classic three-tier enterprise campus with redundant core switches, distribution blocks per building, access switches, wireless and a firewall edge — for network engineers.
MermaidData centre spine-leaf fabric
A two-tier spine-leaf data centre fabric with border leaves, server leaf pairs, storage and an EVPN-VXLAN overlay — for data centre and cloud network architects.
MermaidSD-WAN branch network
A branch office on SD-WAN with dual internet and LTE underlays, a central orchestrator, regional hubs and direct cloud breakout for SaaS — for WAN engineers.
MermaidHome network with mesh Wi-Fi & IoT VLAN
A home network with fibre router, a mesh Wi-Fi system and separate VLANs for trusted devices, IoT gadgets and guests behind a firewall — for home-lab enthusiasts.
MermaidZero-trust network access (ZTNA)
How ZTNA replaces VPN: identity provider, device posture, policy engine and app connectors broker per-application access with no inbound firewall ports — for security architects.
MermaidKubernetes cluster networking
Traffic paths inside a Kubernetes cluster: cloud load balancer, ingress controller, Services, kube-proxy, CNI pod network, CoreDNS and network policies — for platform engineers.
MermaidDNS resolution path
What happens when a browser resolves a domain name: local caches, recursive resolver, root, TLD and authoritative servers, plus DNSSEC and CDN steering — for developers and students.
MermaidMulti-site MPLS with internet backup
Head office, data centre and branches linked by a carrier MPLS VPN, with IPsec over internet as automatic failover using BGP and tracked routes — for enterprise WAN teams.
MermaidModel training, RAG and agent architectures.
RAG (retrieval-augmented generation) pipeline
Documents indexed, retrieved, and used to ground an LLM answer.
MermaidML model training pipeline
Data to a deployed model, with an evaluation gate.
MermaidLLM agent tool-use loop
An agent choosing between answering and calling a tool.
MermaidModel inference serving
A request path through a model server with caching.
MermaidCustomer support chatbot architecture
Intent routing between an LLM and a human handoff.
MermaidData labeling pipeline for ML
Raw samples through human review into a training set.
MermaidComputer vision inference at the edge
Cameras feeding an edge device that runs an optimised detection model locally, sending only events and samples to the cloud for retraining — for computer vision and IoT teams.
MermaidRecommendation system architecture
A two-stage recommender: user events feed a feature store, candidate generation retrieves items, a ranking model scores them and business rules re-rank — for ML and product engineers.
MermaidNLP text classification pipeline
Classifying support tickets or reviews: text cleaning, tokenisation, a fine-tuned transformer, confidence thresholds and human review for low-confidence predictions — for NLP engineers.
MermaidSpeech-to-text pipeline
Turning call or meeting audio into searchable transcripts: voice activity detection, Whisper transcription, speaker diarisation, PII redaction and summarisation — for voice AI teams.
MermaidAnomaly detection pipeline
Detecting unusual behaviour in metrics or transactions: streaming features, an unsupervised model, dynamic thresholds, alert routing and analyst feedback — for ops and risk teams.
MermaidA/B model evaluation & shadow deployment
Safely promoting a new ML model: offline evaluation, shadow traffic, canary, online A/B test with guardrail metrics and automatic rollback — for MLOps and data science teams.
MermaidFeature store architecture
An offline and online feature store: batch and streaming pipelines compute features once, a registry defines them, and training and serving read consistent values — for ML platform teams.
MermaidEmbedding & vector search pipeline
Building semantic search: documents are chunked, embedded and indexed in a vector database, then queries are embedded, matched with hybrid search and re-ranked — for search and AI engineers.
MermaidSingle agents, multi-agent orchestration, MCP and A2A protocols, RAG variants, memory, guardrails and LLMOps — the architectures teams are building AI products on.
ReAct agent (reason + act loop)
The basic agent loop: the model reasons, picks a tool, observes the result and repeats until it can answer — the pattern under most agent frameworks.
MermaidSupervisor multi-agent orchestration
A supervisor agent routes work to specialist agents (research, coding, data, writing), collects results and decides when the task is done.
MermaidHierarchical agent teams
A top-level manager delegating to team leads, each running its own workers — how large tasks like building a product brief or a codebase are decomposed.
MermaidAgent handoffs (swarm pattern)
Agents pass the conversation to each other with context — triage to billing to technical support — without a central supervisor.
MermaidOrchestrator-workers pattern
An orchestrator LLM breaks a task into subtasks at runtime, fans them out to worker LLM calls in parallel, and synthesises the results.
MermaidPrompt chaining with gates
A fixed workflow of LLM steps with programmatic checks between them — outline, check, draft, translate — cheaper and more predictable than a free-running agent.
MermaidLLM gateway & model routing
A gateway in front of several model providers that routes by task and cost, caches responses, enforces limits and falls back when a provider fails.
MermaidAgent-to-agent (A2A) network
Independent agents from different teams or vendors discovering each other via agent cards and delegating tasks over the A2A protocol, with MCP for their tools.
MermaidModel Context Protocol (MCP) architecture
An AI host app with MCP clients connecting to local and remote MCP servers that expose tools, resources and prompts.
MermaidAgentic RAG with self-correction
A retrieval agent that rewrites queries, grades retrieved documents, falls back to web search and checks its answer for hallucinations before responding.
MermaidGraphRAG with a knowledge graph
Documents turned into an entity-relationship knowledge graph plus community summaries, then queried together with vector search for multi-hop questions.
MermaidDeep research agent
A long-running agent that plans research, searches and reads in parallel, reflects on gaps, and writes a cited report.
MermaidAutonomous coding agent
How a coding agent works on a ticket: explore the repo, plan, edit, run tests, fix failures and open a pull request for human review.
MermaidComputer-use / browser agent
An agent that operates a real browser or desktop by looking at screenshots and issuing clicks and keystrokes, with safety confirmations.
MermaidAgent memory architecture
Short-term context, episodic and semantic long-term memory, and procedural memory — how agents remember across sessions.
MermaidLLM guardrails pipeline
Input and output guardrails around a model call: prompt-injection and PII checks going in, grounding, toxicity and policy checks coming out.
MermaidLLMOps: evaluation & monitoring loop
Offline eval sets, CI gates on prompt changes, online tracing, user feedback and regression datasets — how teams ship LLM features safely.
MermaidMulti-agent debate & critique
Several agents propose answers, critique each other over rounds, and a judge picks or merges the result — used to improve reasoning accuracy.
MermaidLLM fine-tuning pipeline
Collect and clean data, create instruction pairs, fine-tune with LoRA, evaluate against the base model and deploy behind an A/B test.
MermaidAI customer service agent with escalation
An agent answering support with the knowledge base and account tools, taking safe actions itself and escalating to humans with a summary.
MermaidEnterprise agent platform architecture
The platform layer companies build for many agents: registry, tool catalogue via MCP, identity, policy, memory, observability and a model gateway.
MermaidPatient care pathways, clinical workflows and healthcare records — used by clinics, hospitals and health-tech teams to document how care and data move.
Patient intake & triage
From check-in to being seen, with a triage priority split. Used by clinics and ER front desks to document the intake process for staff training and process review.
MermaidAppointment scheduling workflow
Booking through reminder to visit, with a reschedule branch. A common template for clinic front-office and patient-portal documentation.
MermaidSpecialist referral pathway
Primary care to specialist and back, the loop most referral-tracking tools are built around.
MermaidElectronic health record (EHR) schema
Patients, visits, diagnoses and prescriptions — the core tables behind most EHR and practice-management systems.
SQL DDLSurgical case scheduling
Pre-op clearance through post-op discharge, used to map operating-room workflow.
MermaidHealth insurance claim processing
Claim submission through payment or denial — the path a medical bill takes after a visit.
MermaidTelehealth visit flow
A remote-visit process from booking to e-prescription, common for virtual-care products.
MermaidLab test ordering & results
Order to result to patient notification, used by labs and hospital systems.
MermaidHospital admission & discharge
ER or direct admission through bed assignment to discharge planning.
MermaidVaccination clinic workflow
Registration through observation, the standard flow for mass-vaccination clinics.
MermaidPrior authorization request
How a provider gets payer approval before a procedure or drug: eligibility check, clinical documentation, payer review, peer-to-peer and appeal paths.
MermaidMedication reconciliation at transitions of care
Comparing home medications against admission, transfer and discharge orders so omissions, duplications and interactions are caught and resolved by the care team.
MermaidEmergency department patient flow
A patient journey through the emergency department, from arrival and ESI triage through evaluation, diagnostics and disposition to admission, transfer or discharge.
MermaidEnrollment, course design and research workflows for schools, universities and edtech products.
Student enrollment process
Application through registration, used by admissions offices to document the enrollment funnel.
MermaidCourse registration workflow
Selecting and confirming classes each term, with a waitlist branch common in university systems.
MermaidAssignment grading workflow
Submission through grade release, used to document academic-integrity and grading process.
MermaidSchool information system schema
Students, courses, enrollments and grades — a compact schema for a student information system.
SQL DDLCurriculum design & approval
How a new course moves from proposal to being offered — used by academic departments and edtech curriculum tools.
MermaidThesis / dissertation review process
Draft through defense and final submission, used by graduate programs to document the review cycle.
MermaidOnline course completion flow
Enrollment through certificate issuance, the shape most MOOC and e-learning platforms follow.
MermaidLibrary book checkout process
Search through return, with an overdue/renewal branch. A classic library-systems example.
MermaidResearch grant application process
Proposal through award, used by university research offices to explain the funding pipeline.
MermaidStudent feedback & course improvement loop
End-of-term evaluations feeding back into course design.
MermaidUniversity admissions review
From application submission to decision release: completeness checks, holistic reader review, committee discussion, admit, deny or waitlist and enrolment deposit.
MermaidExam proctoring & academic integrity case
Online exam proctoring flags suspected misconduct, instructors review evidence and an integrity panel hears the case with student response and appeal rights.
MermaidSpecial education IEP process
The Individualized Education Program cycle: referral, parental consent, evaluation, eligibility, IEP meeting, services, progress monitoring and annual review.
MermaidContract review, case management and regulatory processes for legal teams and compliance functions.
Contract review & approval
Draft through signature, the workflow most legal ops and CLM tools are built to automate.
MermaidCompliance incident reporting
Report through remediation, used by compliance and legal teams to document their escalation path.
MermaidPatent / trademark filing process
Invention disclosure through grant, used by IP counsel to walk stakeholders through timelines.
MermaidCase management schema
Clients, cases, documents and billable hours — the core of most legal case-management tools.
SQL DDLGDPR data subject access request (DSAR)
Request intake through fulfillment, used by privacy teams to document their DSAR SLA.
MermaidEmployee grievance / HR investigation
Complaint through resolution, a standard flow for HR and employee-relations documentation.
MermaidVendor due diligence & onboarding
Risk screening before a new vendor contract is signed — common in procurement and legal risk teams.
MermaidRegulatory filing process
Preparing and submitting a filing to a regulator, with an amendment loop.
MermaidLitigation hold / e-discovery process
Preserving records once litigation is reasonably anticipated — a common e-discovery reference diagram.
MermaidNDA request & signature workflow
A lightweight, high-volume legal workflow: request, template, review, sign.
MermaidCivil litigation lifecycle
The stages of a civil lawsuit from pleadings and motions through discovery, mediation, trial and post-trial appeal, with settlement exits along the way.
MermaidM&A due diligence
Buy-side due diligence for an acquisition: NDA, data room, workstream reviews, red-flag reporting and how findings shape price, indemnities and the decision to sign.
MermaidGDPR personal data breach notification
The GDPR Article 33 and 34 timeline: detect and contain a breach, assess risk to individuals, notify the supervisory authority within 72 hours and inform data subjects.
MermaidProduction lines, quality control and logistics — used by operations and supply-chain teams.
Production line workflow
Raw materials through packaging, the standard shape of a manufacturing line diagram.
MermaidQuality control inspection process
Sampling through disposition, used by QA teams to document acceptance criteria.
MermaidEnd-to-end supply chain flow
Supplier to customer across every hop — a common overview diagram for ops and logistics teams.
MermaidInventory replenishment process
Reorder-point logic as a flowchart, used to document automated purchasing rules.
MermaidShipping & logistics schema
Shipments, carriers and tracking events — a compact schema for a logistics tracking system.
SQL DDLWarehouse order picking process
Order through dispatch, the flow most WMS software automates.
MermaidSupplier onboarding & qualification
Vetting a new supplier before they enter the procurement system.
MermaidPreventive equipment maintenance
A scheduled-maintenance loop used in plant and facilities operations.
MermaidDemand forecasting & production planning
Historical sales data feeding into a production plan, a common S&OP diagram.
MermaidProduct recall process
Defect detection through customer notification — a serious-but-common manufacturing/QA diagram.
MermaidEngineering change order (ECO)
Controlling a product design change: change request, impact analysis, change control board approval, BOM and drawing updates, and effectivity on the shop floor.
MermaidMaterial requirements planning (MRP) run
How an MRP run nets demand against inventory and open orders, explodes the bill of materials, offsets lead times and creates planned orders and exception messages.
MermaidCorrective & preventive action (CAPA)
The quality CAPA loop used under ISO 9001 and FDA rules: problem intake, risk triage, containment, root cause analysis, actions and effectiveness verification.
MermaidStore and online operations that go beyond system integration — checkout, fulfillment, loyalty and returns.
Online checkout flow
Cart to confirmation, the exact path a UX or product team maps to reduce cart abandonment.
MermaidOrder fulfillment process
Order placed to delivered, the standard operations view of fulfillment.
MermaidIn-store point-of-sale transaction
Scan to receipt, used to document in-store checkout for retail ops teams.
MermaidLoyalty program points flow
Purchase to reward redemption, used by marketing and loyalty teams.
MermaidIn-store return & refund process
Receipt check through refund method, the retail counterpart to the e-commerce returns flow.
MermaidRetail store & inventory schema
Stores, products and sales — a compact schema for a multi-location retail system.
DBMLMarkdown / clearance pricing process
How aging inventory gets progressively discounted, a common merchandising workflow.
MermaidClick-and-collect (BOPIS) flow
Buy online, pick up in store — the omnichannel flow most retailers now support.
MermaidSeasonal staffing / workforce planning
Forecast to scheduled shifts, used by retail operations ahead of peak seasons.
MermaidGift card issuance & redemption
Purchase, activation and redemption — a common small-scope diagram for retail finance.
MermaidOmnichannel inventory sync
Keeping one available-to-sell number across stores, warehouses and online channels: stock events, safety buffers, channel allocation and oversell handling.
MermaidNew store opening
Opening a physical retail location: site selection, lease, permits, fit-out, hiring, stocking, soft opening and grand opening with go or no-go checkpoints.
MermaidDropshipping order flow
How a retailer sells items it never stocks: order capture, supplier routing, stock confirmation, supplier shipping, tracking sync and margin settlement.
MermaidCampaigns, funnels and content workflows for marketing and growth teams.
Marketing campaign launch process
Brief through post-launch reporting, used to plan and document a campaign timeline.
MermaidLead nurture email funnel
Sign-up through sales handoff, a standard marketing-automation diagram.
MermaidMarketing funnel (AIDA)
Awareness, interest, desire, action — the classic funnel used to plan channel strategy.
MermaidContent production workflow
Idea through published post, used by content and social teams to track their pipeline.
MermaidA/B test process
Hypothesis through rollout decision, a standard experimentation workflow for growth teams.
MermaidEvent / webinar marketing funnel
Promotion through post-event follow-up, used to plan a webinar or conference funnel.
MermaidCustomer referral program flow
Existing customer to new customer, with a reward on both sides — a growth-loop diagram.
MermaidSEO content workflow
Keyword research through ranking review, used by SEO and content teams.
MermaidBrand asset approval workflow
Design through brand sign-off, used by brand and design teams to formalize review gates.
MermaidCustomer persona research process
Interviews and data feeding into a usable marketing persona.
MermaidInfluencer marketing campaign
Running a creator campaign: brief, discovery and vetting, contracts, content approval, disclosure compliance, publishing and performance-based payment.
MermaidMarketing automation lead scoring
Scoring leads on fit and engagement in a marketing automation platform, routing MQLs to sales, recycling rejected leads and decaying scores over time.
MermaidPR crisis response
A communications team handling a brand crisis: social listening alert, severity triage, holding statement, legal review, stakeholder messaging and recovery monitoring.
MermaidInvoicing, budgeting and reporting workflows for finance teams — beyond data-warehouse schemas.
Invoice-to-payment process
Invoice creation through cash received, the core AR workflow finance teams document.
MermaidProcure-to-pay process
Purchase request through vendor payment, the standard P2P diagram for finance and procurement.
MermaidEmployee expense reimbursement
Receipt submission through payroll reimbursement, common in finance ops documentation.
MermaidMonthly financial close process
The recurring close checklist most accounting teams run every month.
MermaidAnnual budgeting cycle
Department requests through board approval — a common FP&A planning diagram.
MermaidGeneral ledger accounting schema
Accounts, journal entries and line items — the backbone of a double-entry accounting system.
SQL DDLLoan application & approval process
Application through disbursement, used by lenders and fintech products.
MermaidInternal audit process
Planning through remediation tracking, a standard internal-audit lifecycle diagram.
MermaidTransaction fraud review process
Flagged transaction through resolution, used by fintech and banking risk teams.
MermaidPayroll processing cycle
Time tracking through direct deposit, the recurring cycle every payroll system automates.
MermaidAccounts receivable collections
Working overdue invoices: aging buckets, dunning reminders, collector calls, payment plans, disputes, credit holds and bad debt write-off.
MermaidTreasury cash forecasting
Building a rolling 13-week cash forecast from bank balances, receivables, payables and payroll, then funding shortfalls or investing surplus cash.
MermaidFixed asset lifecycle
Accounting for a fixed asset from capex approval and capitalization through depreciation, impairment review, transfer and disposal with gain or loss.
MermaidSprint cycles, project intake and release processes for PMs and engineering teams.
Scrum sprint cycle
Planning through retrospective, the recurring loop behind every scrum team.
MermaidKanban board workflow
A task moving through the standard kanban columns, used to document a team’s WIP policy.
MermaidProject intake & prioritization
Request through roadmap placement, used by PMOs to standardize how new work enters the pipeline.
MermaidSoftware release management process
Code freeze through post-release monitoring, a standard release-train diagram.
MermaidIT change management process
Change request through implementation, used by IT ops to document their change advisory board (CAB) process.
MermaidProject risk management process
Identifying and tracking risk through to closure, a standard PMBOK-style diagram.
MermaidProject stage-gate approval process
A phase-gate model used in traditional project management to control funding and scope.
MermaidBug triage & fix workflow
Report through fix verification, a common engineering-team reference diagram.
MermaidOKR tracking & check-in process
How teams review progress against objectives during a quarter.
MermaidTeam resource allocation process
Matching people to projects each planning cycle — a common PMO/staffing diagram.
MermaidSprint retrospective meeting
How a Scrum team runs a retrospective: set the stage, gather data, generate insights, agree a few owned actions and carry them into the next sprint.
MermaidSAFe PI planning event
The two-day SAFe Program Increment planning event: business context, team breakouts, draft plan review, risk ROAMing and the confidence vote that commits the ART.
MermaidProduct backlog refinement
How a product owner and team groom backlog items: clarify user stories, add acceptance criteria, split large items and estimate until they meet the Definition of Ready.
MermaidPublic-sector services, grant management and event planning workflows.
Government permit application process
Application through issuance, a common public-sector service-design diagram.
MermaidNon-profit grant application review
Proposal through funding decision, used by foundations and non-profits to document review criteria.
MermaidVoter registration process
A public civic-services example: application through confirmation.
MermaidNon-profit volunteer onboarding
Sign-up through first shift, used by non-profits and community organizations.
MermaidEvent planning process
Concept through post-event wrap-up, a general-purpose event-management diagram.
MermaidPublic records request (FOIA) process
Request through response, used by government agencies to document statutory timelines.
MermaidCity 311 service request process
A resident report through resolution — the shape behind most municipal 311 systems.
MermaidConference / event management schema
Attendees, sessions and registrations — a compact schema for an event platform.
DBMLEmergency / disaster response process
Alert through recovery, a high-level public-safety coordination diagram.
MermaidElection vote counting process
Polls closing through certified results, a transparency-focused civic diagram.
MermaidPassport application process
Applying for or renewing a passport: choose the right form, gather proof of citizenship and photo, submit online or in person, pay fees and track issuance.
MermaidIncome tax return & refund process
Filing an individual income tax return and getting a refund: collect forms, choose deductions, e-file, pass tax authority checks and receive direct deposit.
MermaidNon-profit donation processing
How a charity processes gifts: receive donations online or by cheque, record them in the donor CRM, issue tax receipts, apply restrictions and thank donors.
MermaidTravel, real estate, hospitality and life-admin processes — generic templates useful outside any single industry.
Home buying process
Pre-approval through closing, a widely searched real-estate reference diagram.
MermaidTrip planning process
Destination decision through departure, a generic template useful for travel apps and personal planning.
MermaidRestaurant order & service flow
Seating through payment, the standard front-of-house workflow for restaurants and POS systems.
MermaidJob application process (candidate view)
Applying through offer, the candidate-side mirror of the hiring-process template.
MermaidMoving house process
Planning through settling in, a generic personal-logistics flowchart.
MermaidWedding planning timeline
Engagement through the big day, a generic event-planning example many people search for.
MermaidCar buying process
Research through drive-off-the-lot, a common consumer decision-flow example.
MermaidHotel booking & stay flow
Search through checkout, the standard hospitality booking journey.
MermaidRecipe / meal prep workflow
A lighthearted but genuinely useful generic process example: prep through plating.
MermaidPersonal monthly budgeting process
Income through savings, a generic personal-finance flowchart useful for budgeting apps.
MermaidMarathon training plan
A typical 16 to 20 week marathon training cycle: base building, long runs, speed work, taper and race week, with checks for injury and missed workouts.
MermaidGetting a driving licence
The typical path to a full driving licence: apply for a learner permit, pass the theory test, log supervised practice, book and pass the road test.
MermaidPet adoption process
Adopting a dog or cat from a shelter or rescue: browse listings, apply, home check, meet-and-greet, pay the adoption fee and settle the pet in.
MermaidAuthentication, access control, threat response and compliance flows for security and platform teams.
OAuth 2.0 login with PKCE
The authorization-code-with-PKCE flow a single-page or mobile app uses to sign a user in without a client secret — the standard picture for any SSO integration review.
MermaidSecure password reset flow
A password reset that resists account takeover: rate limits, single-use expiring tokens, and session revocation — used in security reviews and auth implementation.
MermaidAccess request & approval (least privilege)
How an employee gets access to a system: request, manager and owner approval, time-bound grant, and periodic recertification — the core of an IAM governance process.
MermaidSecurity incident response (NIST lifecycle)
Detection through lessons learned, following the NIST preparation-detection-containment-eradication-recovery lifecycle. A standard SOC and CISO reference diagram.
MermaidVulnerability management lifecycle
Scan, prioritise by exploitability, patch within SLA, verify — the loop every security team runs and auditors ask to see.
MermaidZero-trust access decision
Every request is evaluated on identity, device posture and context before reaching an app — the policy decision flow behind a zero-trust architecture.
MermaidSecrets & key rotation
Rotating a database password or API key without downtime using dual credentials — a common platform-engineering runbook.
MermaidPhishing report & response
From the employee "report phish" button through analysis, mailbox purge and account reset — used by SOC teams and security awareness programs.
MermaidSOC 2 audit readiness
Scoping, control design, evidence collection and the audit window — the path a SaaS company follows to its first SOC 2 Type II report.
MermaidAPI request authentication & authorization
How a backend validates every API call: key or JWT, scopes, rate limits and audit — useful for API design reviews.
MermaidMFA enrollment flow
How users enrol in multi-factor authentication: prompt at sign-in, choose passkey, authenticator app or SMS, verify the factor and save recovery codes.
MermaidSIEM alert triage
How a SOC analyst triages a SIEM alert in Splunk, Sentinel or Elastic: enrich, check for false positives, scope impact, and escalate to incident response.
MermaidRansomware incident response
A ransomware response playbook: detect and isolate, activate the incident team, assess scope, preserve evidence, restore from clean backups and notify regulators.
MermaidUser flows for apps and websites — onboarding, checkout, subscriptions and permissions — the diagrams product designers and PMs draw before building.
Mobile app onboarding flow
First launch through first value: permissions asked in context, account creation, and personalisation — the flow most growth teams obsess over.
MermaidSubscription billing lifecycle
Trial, conversion, renewals, failed-payment dunning and cancellation — the state machine behind every SaaS or app subscription.
MermaidIn-app purchase & receipt validation
Buying a digital item in a mobile app, with server-side receipt validation and entitlement delivery — the flow every app with IAP needs to get right.
MermaidFeature flag progressive rollout
Shipping a feature behind a flag: internal, beta, percentage ramps and kill switch — how product and engineering de-risk launches.
MermaidSearch results user flow
From typing a query to finding a result — autocomplete, filters, zero-results recovery. A common UX flow for e-commerce and content sites.
MermaidAccount deletion (right to erasure)
A user-initiated account deletion with grace period, data export and downstream purge — what app stores and privacy law now require.
MermaidTwo-sided marketplace transaction
Buyer, seller and platform in one flow: listing, escrow, delivery and payout — the core loop of marketplaces like Etsy, Airbnb or Upwork.
MermaidMobile permission request pattern
The pre-permission prompt pattern that raises opt-in rates for camera, location and notifications — a UX best-practice diagram.
MermaidIn-app feedback to roadmap loop
How user feedback captured in the product becomes a shipped change and a closed loop back to the user — a product-ops process diagram.
MermaidCart abandonment recovery
What happens after a shopper leaves with items in the cart: timed emails, incentives and suppression rules — a common e-commerce CRM flow.
MermaidFree trial to paid conversion
How a SaaS free trial converts: sign-up, activation milestones, in-app nudges and email nurture, upgrade prompts at trial end, and grace or downgrade paths.
MermaidTeam member invite flow
How a SaaS app invites teammates: admin sends invites, seat and domain checks, email or SSO acceptance, role assignment and workspace onboarding.
MermaidPlan upgrade & downgrade flow
How SaaS customers change subscription plans: compare tiers, proration on upgrade, scheduled downgrades at period end, and feature limit checks.
MermaidHelp desk, escalation, renewal and churn-prevention processes for support and customer success teams.
Support escalation matrix
Tiered escalation from front-line support to engineering and executives, with SLA timers — the diagram every support org pins to the wall.
MermaidB2B customer onboarding (implementation)
From signed contract to live customer: kickoff, integration, data migration, training and go-live — the customer success implementation playbook.
MermaidChurn risk & save playbook
Health scoring triggers a save playbook before renewal — how customer success teams catch at-risk accounts early.
MermaidContract renewal process
The 120-day renewal runway for subscription contracts: forecast, QBR, pricing and signature — a standard account-management flow.
MermaidKnowledge base article lifecycle
Turning repeated tickets into help articles and keeping them accurate — the KCS (knowledge-centred service) loop.
MermaidCall centre IVR routing
Phone menu, authentication and skill-based routing to the right agent — the call flow contact-centre teams design and tune.
MermaidNPS survey closed-loop follow-up
Detractors, passives and promoters each get a different follow-up, and themes feed the roadmap — the closed-loop NPS process.
MermaidChargeback & dispute handling
What a merchant does when a customer disputes a card charge: evidence, representment and outcomes — a payments-ops reference flow.
MermaidChatbot to live agent handoff
When and how a support bot hands over to a human with full context — a key conversational-support design diagram.
MermaidQuarterly business review preparation
Preparing and running a QBR with a key account: data pull, value story, roadmap and joint action plan.
MermaidOnboarding NPS survey
Measuring onboarding success with an NPS survey: trigger after go-live, segment responses into promoters, passives and detractors, and follow up on each.
MermaidCustomer health score workflow
How a customer success team scores account health from product usage, support tickets, NPS and billing, then routes red, yellow and green accounts to playbooks.
MermaidSupport SLA breach handling
How a help desk tracks first response and resolution SLAs: timers by priority, warnings before breach, escalation when breached, and breach reporting.
MermaidEmployee lifecycle processes — performance, leave, compensation, offboarding — for HR and people teams.
Performance review cycle
Self review, peer feedback, calibration and conversation — the annual or semi-annual review process most companies run.
MermaidEmployee offboarding
Resignation or termination through final pay, access removal and exit interview — the checklist that keeps offboarding secure and humane.
MermaidLeave & time-off request
Requesting, approving and tracking holiday, sick and parental leave, including cover and balance checks.
MermaidAnnual compensation review
Budget setting, market benchmarking, manager proposals and approvals — how pay rises and bonuses are decided.
MermaidInternal transfer & promotion
An employee moving to a new role internally: posting, application, manager conversations and transition.
MermaidHarassment complaint investigation
A fair, confidential investigation process from complaint to outcome — a sensitive but essential HR procedure diagram.
MermaidLearning & development program
Skills gap analysis to measured impact — how L&D teams plan and evaluate training.
MermaidEngagement survey to action plan
Running an engagement survey and turning results into team-level actions that are tracked — the part most companies skip.
MermaidWork visa sponsorship process
Sponsoring an international hire: eligibility, filing, approval and relocation — a common HR and immigration workflow.
MermaidHiring in a new country (EOR)
Choosing between an employer of record and setting up a local entity to hire someone abroad.
MermaidRecruitment pipeline
An end-to-end recruiting pipeline from requisition to hire: job posting, sourcing, screening, structured interviews, debrief, offer and background check.
MermaidNew hire probation review
How companies manage the probation period: set goals at start, hold 30, 60 and 90 day check-ins, then confirm, extend or end employment with HR.
MermaidEmployee referral program
How an employee referral program works: submit a referral, recruiter review, candidate status updates to the referrer and bonus payout after the hire stays.
MermaidLeasing, property management, construction and transactions for landlords, agents and facility managers.
Rental application & tenant screening
From enquiry to signed lease: viewing, application, credit and reference checks, and move-in — the letting agent’s core process.
MermaidProperty maintenance request
A tenant reports a repair; the property manager triages urgency, dispatches a contractor and closes it out.
MermaidLease renewal & rent review
The 90-day window before a lease ends: market review, offer, negotiation and new term or move-out.
MermaidSelling a property (seller view)
Valuation through completion from the seller’s side — the path estate agents walk vendors through.
MermaidBuilding construction project phases
Feasibility to handover for a construction project, with planning approval and inspection gates.
MermaidFacilities work order management
How a facilities team handles requests across buildings: intake, SLA, technician dispatch and asset history.
MermaidMortgage application process
Agreement in principle through funds released — the lender’s underwriting path for a home loan.
MermaidShort-term rental guest turnover
Guest checkout to next check-in for a holiday let: cleaning, inspection, restocking and smart-lock codes.
MermaidHomeowners association violation process
Complaint, notice, hearing and fines in an HOA or condo association.
MermaidCommercial lease negotiation
Heads of terms through fit-out for an office or retail lease.
MermaidRental property turnover inspection
What a property manager does between tenants: move-out inspection against the move-in report, deposit deductions, make-ready repairs, cleaning and relisting.
MermaidRent collection & arrears process
How landlords collect rent and handle late payment: autopay and reminders, late fees after the grace period, payment plans, formal notices and eviction filing.
MermaidHome inspection process (buyer)
How a buyer handles the home inspection contingency: book a licensed inspector, review the report, order specialist checks and negotiate repairs or credits.
MermaidFreight, fleet, last-mile delivery and customs processes for logistics operators and shippers.
Last-mile delivery process
Parcel from local depot to doorstep, with route optimisation, failed-delivery handling and proof of delivery.
MermaidInternational freight import
Booking a container from overseas supplier to your warehouse: freight forwarder, customs clearance and duties.
MermaidFleet vehicle maintenance
Telematics-triggered servicing, inspections and downtime planning for a vehicle fleet.
MermaidRide-hailing trip lifecycle
Request, matching, pickup, trip and payment — the core flow behind Uber-style apps.
MermaidCold chain temperature monitoring
Keeping vaccines or fresh food within temperature from dispatch to delivery, with excursion handling.
MermaidWarehouse inbound receiving
From dock appointment to put-away: ASN matching, inspection and discrepancy handling.
MermaidDelivery dispatch & route planning
Daily planning of orders into routes, driver assignment and live exception management.
MermaidExport compliance & customs
Classifying goods, screening parties and filing export declarations before shipping internationally.
MermaidAirport checked baggage journey
Bag drop to carousel: screening, sortation, transfers and mishandled-bag recovery.
MermaidReverse logistics & refurbishment
Returned products triaged into restock, refurbish, recycle or liquidate — the circular supply chain.
MermaidPort container clearance
How an import container clears a seaport: vessel discharge, customs entry filing, inspections, duty payment, terminal release and drayage to the warehouse.
MermaidFreight damage claim process
How a shipper files a cargo loss or damage claim: note exceptions on the proof of delivery, document the damage, file within deadlines and negotiate settlement.
MermaidTruckload booking & load tendering
How a shipper books a full truckload: create the load in the TMS, tender to contract carriers in a routing guide, fall back to spot market, then track and pay.
MermaidConnected devices, smart homes, EV charging and utility operations.
IoT device provisioning & OTA updates
A device from factory to field: secure identity, first connection, and over-the-air firmware updates with rollback.
MermaidSmart home automation routine
An evening routine triggered by presence and time: lights, heating, security and notifications.
MermaidEV charging session
Plug-in to payment at a public EV charger, including authorisation, smart charging and idle fees.
MermaidPower outage restoration
How a utility detects, isolates and restores a distribution outage while keeping customers informed.
MermaidResidential solar installation
Site survey to interconnection for a home solar and battery system.
MermaidPredictive maintenance with sensors
Vibration and temperature sensors feed an anomaly model that schedules maintenance before failure.
MermaidSmart meter to utility bill
Half-hourly readings through validation, tariff calculation and billing.
MermaidBuilding management system control loop
How HVAC, lighting and occupancy sensors are coordinated to cut energy use in an office building.
MermaidWearable health alert flow
A smartwatch detects an irregular heart rhythm or fall and escalates to the user, contacts or emergency services.
MermaidWater treatment plant process
Raw water intake through distribution with quality monitoring at each stage.
MermaidSmart thermostat schedule logic
How a smart thermostat like Nest or ecobee decides setpoints: schedule, occupancy sensing, eco mode when away, weather, and utility demand response events.
MermaidHome battery storage dispatch
How a home battery such as Tesla Powerwall decides to charge or discharge: solar surplus, time-of-use rates, backup reserve, grid outages and virtual power plant events.
MermaidSmart lock access control
How a smart lock decides whether to unlock: app, keypad code or auto-unlock, schedule checks for guest codes, tamper lockout, and activity notifications.
MermaidPublishing, video streaming, podcasting and moderation workflows for media and creator platforms.
Video upload & streaming pipeline
Upload to playback: transcoding to adaptive bitrates, DRM, CDN delivery and analytics.
MermaidNewsroom story workflow
From tip to published story: assignment, reporting, editing, legal and fact-check.
MermaidPodcast production workflow
Topic to published episode: guest booking, recording, editing, show notes and distribution.
MermaidUser-generated content moderation
Automated classifiers plus human review, appeals and enforcement — how platforms moderate at scale.
MermaidIndependent music release
Master to streaming platforms: distribution, metadata, pitching and royalties.
MermaidBook publishing process
Manuscript to bookshelves: acquisition, editing, design, printing and launch.
MermaidLive stream event production
Pre-production through post-event VOD for a professional live broadcast.
MermaidProgrammatic ad serving (RTB)
What happens in the ~100 ms between a page load and an ad appearing: bid request, auction and render.
MermaidPaid newsletter publishing
Writing, sending and monetising a newsletter with free and paid tiers.
MermaidStock photo licensing
Contributor upload, review, sale and royalty — how a stock media marketplace works.
MermaidYouTube video publishing workflow
A creator workflow for publishing YouTube videos: research, script, record, edit, thumbnail and SEO metadata, upload checks, scheduling and post-launch analytics.
MermaidDMCA copyright takedown process
How a platform handles DMCA copyright notices: validate the notice, remove content, notify the uploader, process counter-notices and apply repeat infringer strikes.
MermaidFilm & video post-production workflow
The post-production pipeline for a film or commercial: ingest and dailies, offline edit, picture lock, VFX, colour grade, sound mix and final deliverables.
MermaidAccount opening, payments, KYC, underwriting and claims processes for banks, fintechs and insurers.
KYC customer onboarding
Digital account opening with identity verification, sanctions screening and risk rating.
MermaidCard payment authorisation & settlement
What happens between tapping a card and the merchant getting paid: acquirer, network, issuer and settlement.
MermaidCar insurance claim
First notice of loss through repair and payment for a motor claim, with fraud checks and total-loss branch.
MermaidInsurance underwriting
Quote to bound policy: application, rating, risk assessment and referral to an underwriter.
MermaidAML transaction monitoring
Rules and models flag suspicious activity, analysts investigate, and reports go to regulators.
MermaidInternational wire transfer
Initiation to beneficiary credit via SWIFT, with screening and FX conversion.
MermaidCredit card dispute (cardholder side)
A cardholder disputes an unrecognised charge: provisional credit, investigation and resolution.
MermaidPeer-to-peer payment (digital wallet)
Sending money to a friend by phone number, including risk checks and instant vs standard payout.
MermaidLife insurance application
Application, medical underwriting and policy issue for term life insurance.
MermaidBuy now, pay later checkout
Soft credit check at checkout, instalment plan and repayment handling.
MermaidMortgage refinance process
How a homeowner refinances a mortgage: compare rates and break-even, apply, lock the rate, appraisal and underwriting, closing and payoff of the old loan.
MermaidOpen banking consent flow
How a fintech app gets permission to access bank data under open banking or PSD2: consent request, redirect to bank, strong customer authentication, token issue and renewal.
MermaidCredit card application decisioning
How a bank decisions a credit card application: identity and fraud checks, credit bureau pull, scoring and policy rules, then instant approval, manual review or decline.
MermaidGit workflows, code review, on-call, and state diagrams for common software objects — drawn as flowcharts.
Git branching workflow
Feature branches, pull requests, release branches and hotfixes — a GitFlow-style model for teams that ship versioned releases.
MermaidCode review process
From opening a pull request to merge: automated checks, reviewer assignment, feedback rounds and approval rules.
MermaidOrder state machine
Every state an e-commerce order can be in and the transitions between them — a classic state diagram drawn as a flowchart.
MermaidIssue tracker ticket lifecycle
The states of a Jira-style issue and who moves it between them.
MermaidOn-call rotation & handoff
Weekly on-call handoff, escalation policy and post-shift review for an engineering team.
MermaidAPI versioning & deprecation
Introducing a breaking API change safely: new version, migration period, sunset headers and removal.
MermaidZero-downtime database migration
The expand-migrate-contract pattern for changing a column or table without taking the app down.
MermaidWebSocket connection lifecycle
Connect, authenticate, heartbeat, reconnect with backoff — the client state machine for real-time apps.
MermaidCache-aside read & write path
How an application reads and writes through a cache with TTLs and invalidation, including stampede protection.
MermaidDistributed transaction saga
Booking a trip across flight, hotel and payment services with compensating actions when a step fails.
MermaidTrunk-based development workflow
How teams practise trunk-based development: short-lived branches, feature flags for unfinished work, fast CI checks and continuous deployment from main.
MermaidIncident postmortem process
A blameless postmortem after a production incident: build the timeline, find contributing causes, agree action items, review, publish and track to completion.
MermaidSemantic versioning release process
Cutting a release with semantic versioning: classify changes as major, minor or patch from conventional commits, bump the version, tag, publish and write the changelog.
MermaidNo template matches that yet.
Try a broader word, or open the app and ask the AI button to draw it for you.