Professional diagram templates
Browse, fork and edit Mermaid and D2 assets for real engineering work.
Showing 1–18 of 90 templates
Commerce Domain Model
A bounded-context model for customer, order, payment, fulfillment, and product ownership.
Service Ownership and Dependencies
Clarifies team ownership, critical dependencies, shared platforms, and blast-radius paths.
Microservice Production Topology
A service topology with clear domain ownership, synchronous edges, events, and data stores.
Progressive Delivery DAG
A release DAG with parallel quality gates, signed artifacts, canary analysis, and automatic rollback.
Lakehouse Data Lineage
Traces data from operational sources through ingestion, transformation, governance, and consumption.
System Context and Containers
A C4-inspired system context and container view without external includes.
Kubernetes Production Deployment
A production cluster boundary with ingress, workload, asynchronous jobs, and managed data.
SRE Incident Response Runbook
A severity-aware incident workflow with mitigation, communications, and follow-up actions.
OAuth 2.1 Authorization Code with PKCE
A secure browser login flow with state, PKCE, token exchange, and session rotation.
Order Lifecycle State Machine
Models valid order states, guarded transitions, cancellation, payment failure, and fulfillment completion.
Zero-Trust Network Segmentation
Maps public entry points, workload identities, policy enforcement, and private data boundaries.
Order Fulfillment Saga
Coordinates inventory, payment, fulfillment, and compensating actions for an order.
D2 System Context
A clear system boundary showing people, the application, and supporting services.
Cloud Deployment Boundary
A production deployment with edge delivery, application services, and managed data.
Event-Driven Orders
An order event stream flowing from checkout into fulfillment and customer updates.
CI/CD Delivery Pipeline
A release pipeline from commit through verification and production rollout.
Release Schedule
A dated release plan from scope lock through code freeze to post-release monitoring.
E-commerce Catalogue and Orders ERD
An entity-relationship model covering customers, orders, products, categories and warehouse inventory.