> Term
Dependency Map
A visual representation of how different systems, teams, or components rely on each other.
Detailed Explanation
A dependency map charts the critical paths between services and systems, showing what must be operational for a specific feature to work.
In complex microservice architectures, it helps identify single points of failure, circular dependencies, and hidden bottlenecks that aren't obvious from looking at individual repositories.
Why It Matters
Without mapping dependencies, changing or upgrading a core service is like pulling a random wire in a data center. A map shows the blast radius of any potential failure or change.
Common Failure Mode
Practical Example
Production Manifestation
Generated dynamically by tracing tools (like Datadog, Jaeger, or Honeycomb) or maintained manually in architecture documentation.
Frequently Asked Questions
What is Dependency Map in short?
A visual representation of how different systems, teams, or components rely on each other.
What is the most common failure mode?
Hidden transitive dependencies, where Service A depends on Service B, and Service B secretly depends on a legacy Service C that goes down, surprisingly breaking Service A.
AI Summary
A visual representation of how different systems, teams, or components rely on each other. Without mapping dependencies, changing or upgrading a core service is like pulling a random wire in a data center. A map shows the blast radius of any potential failure or change.