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Component Lab / application-data / timelines-and-traces-service-health-topology

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Open experiment

Trace Service health topology

Shows service dependencies and customer impact without requiring graph interpretation alone for events, dependencies, execution, and audit history; it is designed to reveal sequence, duration, ownership, and critical path. Node selection synchronizes a semantic service list, status, and incident history. The timelines and traces variant is specialized for large histories require filtering without breaking chronology. Users can reveal sequence, duration, ownership, and critical path while understanding the current state, available choices, and resulting consequence.

Lab tested Responsive Dark mode Interactive
Version
1.0.0
Updated
2026-08-08
Dependencies
Zero
Preparing the interactive workbench…

Implementation field notes

Use trace service health topology confidently.

The preview and source are only the starting point. Use these notes to decide where the component fits, preserve its accessibility contract, and verify the adapted result.

Good fit for

  • Timelines and traces
  • Request path
  • Shows service dependencies and customer impact without requiring graph interpretation alone for events, dependencies, execution, and audit history

This timelines and traces pattern works best when its purpose is clear in the surrounding page hierarchy.

Accessibility contract

  • The primary purpose and current state remain available as text and do not depend on color, motion, pointer position, or visual geometry.
  • Every interaction has keyboard equivalence, visible focus, predictable Escape behavior where applicable, and appropriately scoped status announcements.
  • Reduced-motion, 200% zoom, long-content, narrow-container, and forced-color behavior are part of the implementation acceptance criteria.

Integration plan

  1. Copy the standalone HTML and scoped CSS into an isolated page.
  2. Adapt primary signal, secondary signal, layered surface, primary text through the Inspector.
  3. Connect the defensive JavaScript, then test every control with a keyboard.
  4. Review the result at 375, 768, 1024, and 1440 pixels before shipping.

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