Diagram Template Gallery
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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.
Event Worker Pool Topology
Queue-based asynchronous processing with horizontally scaled workers. Starter template grounded in the Queue and Worker Pool D2 syntax pattern.
Multi-Tenant Boundary References
Nested service boundaries with parent-reference dependencies. Starter template grounded in the Nested Boundaries with References D2 syntax pattern.
Gateway-Centric Service Bundle
API gateway entrypoint with auth, billing, and notification services. Starter template grounded in the Gateway and Downstream Bundle D2 syntax pattern.
Active-Active Regional Cluster
Dual-region topology with shared global entry and mirrored persistence. Starter template grounded in the Symmetric Cluster Topology D2 syntax pattern.
Partner Integration Boundary Map
Boundary map for partner feeds, internal edge controls, and persistence. Starter template grounded in the Boundary Map with Notes D2 syntax pattern.
Customer Identity ERD
Identity data model for accounts, sessions, and profile records. Starter template grounded in the Minimal ERD D2 syntax pattern.
Commerce Order FK Chain
Order-domain relational chain across customer, order, item, and payment entities. Starter template grounded in the FK Chain Model D2 syntax pattern.
Subscription Domain Classes
Class model for subscription lifecycle and billing entities. Starter template grounded in the Class Basics D2 syntax pattern.
Identity Inheritance Model
Inheritance and composition model for user and service identities. Starter template grounded in the Inheritance and Composition D2 syntax pattern.
Analytics Transformation Lineage
Lineage view from raw ingestion to analytics and ML consumption. Starter template grounded in the Transformation Lineage D2 syntax pattern.
Data Stewardship Metadata Map
Ownership map for domain datasets and shared metadata catalog. Starter template grounded in the Ownership and Metadata D2 syntax pattern.
Incident Intake Pipeline
Security incident intake from detection to closure. Starter template grounded in the Linear Process D2 syntax pattern.
Loan Approval Decision Flow
Retail loan screening with branching approval outcomes. Starter template grounded in the Branch and Merge D2 syntax pattern.
Payment Retry Orchestration
Online payment retry control for transient gateway failures. Starter template grounded in the Retry Loop D2 syntax pattern.
Content Approval With Rework
Editorial content release workflow with review loopback. Starter template grounded in the Approval with Rework D2 syntax pattern.
Multi-Channel Lead Normalization
Lead ingestion unification from API, batch, and manual channels. Starter template grounded in the Multi-entry Normalization D2 syntax pattern.
Parallel Compliance Review Gate
Parallel control execution before production release. Starter template grounded in the Parallel and Sync Gate D2 syntax pattern.
Checkout Request Sequence
Synchronous checkout request sequence across gateway and services. Starter template grounded in the Basic Sequence D2 syntax pattern.
Access Policy Alternate Sequence
Access request sequence with allow, deny, and escalation paths. Starter template grounded in the Alternate Path Sequence D2 syntax pattern.
Notification Fan-Out Sequence
Fan-out event dispatch with multi-worker completion acknowledgement. Starter template grounded in the Fan-out Sequence D2 syntax pattern.
Job Retry Loopback Sequence
Loopback sequence for background job retries and completion signaling. Starter template grounded in the Loopback Sequence D2 syntax pattern.
Human Approval Handoff
Human-in-the-loop execution handoff with approval controls. Starter template grounded in the Human Approval Gate D2 syntax pattern.
Async Callback Fulfillment
Asynchronous callback lifecycle from acceptance to completion fetch. Starter template grounded in the Async Callback Flow D2 syntax pattern.
Vendor Evaluation Matrix
Presentation matrix for vendor comparison and decision workshops. Starter template grounded in the Comparison Matrix D2 syntax pattern.
Environment Variable Control Sheet
Config-focused diagram showing variable-driven transformation flow. Starter template grounded in the Variables and Configuration D2 syntax pattern.
Reusable Styling Starter Kit
Style class reuse sample for consistent architecture storytelling. Starter template grounded in the Reusable Styling D2 syntax pattern.
Rollout Brief With Annotations
Annotated rollout brief that combines prose and executable snippets. Starter template grounded in the Annotated Text Blocks D2 syntax pattern.
Clickable Incident Notes Board
Interactive note board linking operational artifacts and status views. Starter template grounded in the Clickable Notes D2 syntax pattern.
Status Board Title and Legend
Status board framing with title placement and legend semantics. Starter template grounded in the Title and Legend Layout D2 syntax pattern.