Principles Matrix
Principles Matrix
| Principle | Technical Requirement | Problem Solved |
|---|---|---|
| Do One Thing Well | Focus on a single business capability; avoid monolithic designs. | Prevents complexity and enhances maintainability by ensuring services are focused and manageable. |
| Do Not Rely on Other Services | Own data; use asynchronous communication (events/webhooks) or explicit API calls. | Reduces tight coupling and increases service independence, enhancing resilience and scalability. |
| Idempotency and Determinism | Ensure state-changing operations are idempotent and deterministic. | Facilitates safe retries and predictable outcomes, improving reliability and user experience. |
| Standardized Authentication & ACL | Use standardized authentication (e.g., JWT) and enforce ACLs based on token claims. | Enhances security and simplifies access management across services. |
| Data Storage (Isolation Requirement) | Isolate data stores; ensure independent management (backup, recovery). | Prevents data corruption and enhances data integrity and security. |
| Webhooks (Event-Driven Communication) | Publish state changes via standardized webhooks. | Enables asynchronous communication, reducing latency and improving system responsiveness. |
| Documentation (OpenAPI Spec) | Provide up-to-date documentation and machine-readable API specifications. | Improves developer experience and facilitates integration and maintenance. |
| Backward Compatibility and Standardized Versioning | Guarantee backward compatibility; follow standardized versioning (e.g., Semantic Versioning). | Ensures smooth transitions during updates, minimizing disruptions for clients. |
| Availability (SLO Requirement) | Define, measure, and meet high SLOs for uptime and latency. | Enhances user satisfaction and trust by ensuring reliable service performance. |
| Observability and Telemetry | Expose unified telemetry data (metrics, logs, traces) in a standardized format. | Enables effective monitoring, debugging, and operational analysis, improving system reliability. |
| Resource Isolation and Circuit Breaking | Implement mechanisms (thread pools, bulkheads, circuit breakers) to isolate resource consumption. | Prevents cascading failures and enhances system resilience during service slowdowns or outages. |