IDA-04 Verification, Validation, and Test Strategy
1. V&V Objectives
- Demonstrate correctness for all mandatory features
- Demonstrate deterministic behavior under nominal and failure conditions
- Demonstrate performance and resource compliance
2. Test Pyramid
- Unit tests: protocol primitives and edge cases
- Component tests: COP-P, frame parsing, state transitions
- Integration tests: complete session lifecycle across duplex modes
- Interoperability tests: cross-implementation exchange
- Stress tests: sustained load and multi-session operation
Test strategy rationale:
- This structure catches low-level defects early and reserves expensive end-to-end validation for integrated behavior.
- It balances rapid developer feedback with high-confidence system-level evidence.
3. Coverage and Quality Targets
- Unit coverage target: above 90%
- Mandatory branch coverage for state transition guards
- Regression suite runtime budget:
Coverage rationale (fill this section):
- Explain why the chosen coverage and runtime budget provide enough confidence without blocking delivery cadence.
4. Requirement Traceability
For each test case include:
- Requirement ID
- CCSDS section/table reference
- Test intent
- Expected behavior
- Evidence output path
Measure and report:
- SPDU encode/decode latency
- Frame processing latency
- Per-session memory overhead
- Throughput under concurrent sessions
Performance evidence rationale (fill this section):
- Explain how each metric maps to scoring criteria and operational reliability.
- Build conformance matrix per mandatory feature
- Maintain PICS document incrementally from Gateway 2 onward
- Validate binary and JSON test vectors for Gateway 8
7. Defect Management
- Severity model (S1-S4)
- SLA per severity
- Root cause template
- Regression test requirement for every fixed defect
Defect-process rationale:
- Severity and SLA policy is designed to keep critical correctness and interoperability defects from crossing gateways.
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