Service Diagram Templates
Browse diagram templates for Service, compare formats, and start faster with AI-ready examples.
Filter by language or use case, preview templates, and jump into related docs before you start generating your own diagram.
Restaurant Order System
Compact restaurant ordering system with multiple actors
Restaurant Order Flow
Restaurant ordering process using only actor icons
SaaS Three-Tier Platform
Core SaaS web stack with UI, service, cache, and persistent storage. Starter template grounded in the Three-layer Architecture D2 syntax pattern.
SaaS Three-Tier Platform (Operations)
Core SaaS web stack with UI, service, cache, and persistent storage. Operations variant that adds authentication boundaries and observability telemetry capture.
SaaS Three-Tier Platform (Enterprise)
Core SaaS web stack with UI, service, cache, and persistent storage. Enterprise variant that adds analytics export and backup lifecycle handling.
Checkout Request Sequence
Synchronous checkout request sequence across gateway and services. Starter template grounded in the Basic Sequence D2 syntax pattern.
Checkout Request Sequence (Operations)
Synchronous checkout request sequence across gateway and services. Operations variant that adds fraud scoring interactions before final response assembly.
Checkout Request Sequence (Enterprise)
Synchronous checkout request sequence across gateway and services. Enterprise variant that adds status polling and finalization lookups for client confirmation.