EditorialDiagramSoftware Engineering
Editorial System Architecture Diagram Designer — No Shadows, No Mermaid Slop
Make a microservice system readable without losing its topology. Start with a ten-node commerce example, then inspect request routing, dedicated storage and asynchronous analytics across a quiet, tiered layout.
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Layout Grammar & Anti-Patterns
Four rules for this diagram
- 01
Choose one primary reading direction and group related services by tier or trust boundary; keep ordinary diagrams to three flat zones.
- 02
Route off-axis edges through orthogonal elbows with 8px corners. Enter a vertically displaced destination through its top or bottom port.
- 03
Draw zones before connectors and nodes. Put boundary names on paper masks and leave at least 16px beneath the label before the first component.
- 04
Reserve accent for one or two integration points. Async and return flows may be dashed, but obey the same routing and crossing rules as solid edges.
Three mistakes to avoid
- Accenting every service makes the integration point impossible to find.
- Flattening nested traffic scopes into one label hides the hierarchy and can misstate network isolation.
- A diagonal shortcut or an unmarked crossing makes a secondary flow look like a primary dependency.
Engineer vs. Executive
The two renders use the same illustrative source. Executive mode groups detail deliberately; read the captions before using an overview for a technical review.
Ten services and stores retain their individual identities, including the event-driven analytics path.
Five business capabilities fold storage and event plumbing into the responsibilities they support.
When to use another diagram instead
Architecture Delta Diagram
Choose a synchronized before/after delta when the question is what changed during a migration.
Sequence Diagram
Choose a sequence when call order, responses or asynchronous messages matter more than the static topology.
Database Schema Diagram
Choose a physical schema when the review depends on column types, foreign keys and deletion behavior.
Questions about this diagram
Does Engineer mode keep the gateway, service databases and event bus separate?
Yes. The example retains all ten source components and their relationships. Dedicated user and order stores stay distinct from the services that own them, and the event bus remains between order handling and analytics. Mixed mode may combine storage with its service; Executive mode summarizes business capabilities.
How do I show a trust boundary without turning the whole architecture into a swimlane?
Group the services that actually share the boundary inside a labelled zone. Keep the primary request direction consistent and use no more than three flat zones. If packet isolation depends on nested network scopes, preserve that containment instead of flattening it into one decorative band.
Can I change the example colors before connecting an AI provider?
Yes. The example and its three density variants are cached SVGs. Anonymous visitors can switch skins and compare those variants locally. Editing the source for a new AI layout requires sign-in, credits and a configured provider; file imports and premium exports follow the displayed plan gates.
Worked examples use illustrative data. Edited sources require an AI provider; cached previews are ready immediately.
Cached examples are free. Starter Pack is $9.9 once; Pro Pass is $8.9 per month. Every generation costs 10 credits, including one automatic geometry repair. Pricing