Initial Design Architecture (IDA) Blueprint Pack
Use this as the architecture and blueprint starter set for your team.
1. Purpose
Provide a mission-grade, reviewable architecture baseline that links:
- CCSDS requirements -> design decisions -> implementation modules -> tests -> evidence
Why this approach:
- It forces every implementation choice to be evidence-backed, which is essential for conformance scoring and judge confidence.
2. Required IDA Documents
The following templates are provided in the docs/ida folder:
- IDA-00-Overview.md
- IDA-01-System-Context-and-Requirements.md
- IDA-02-Layered-Architecture.md
- IDA-03-Interfaces-and-Wire-Format.md
- IDA-04-VandV-and-Test-Strategy.md
- IDA-05-Risk-and-Safety-Case.md
3. IDA Review Milestones
- End Gateway 0: documents 00-03 baseline approved
- End Gateway 3: update interfaces/wire format with workshop artifact evidence
- End Gateway 6: update state/session behavior and risk controls
- End Gateway 8: freeze traceability and conformance evidence
- End Gateway 10: final publication package
Rationale for milestone timing:
- Milestones align with gateway transitions so documentation fidelity tracks implementation maturity.
- Review points are positioned before high-risk integration periods to reduce uncontrolled design drift.
4. Document Ownership
- Engineer A: requirements traceability + protocol design intent
- Engineer B: V&V strategy + risk and safety case
- Engineer C: interoperability operations, execution runbooks, and release-readiness reviews
- Developer A: module-level implementation details for SPDU and COP-P
- Developer B: tooling, examples, and documentation pipeline integration
- Developer C: integration automation, benchmark tooling, and verification script ownership
5. Minimum Evidence Attached To IDA
- Gateway checklists with pass/fail outcomes
- Benchmarks and memory profile summaries
- Test vector references and decode outputs
- Interoperability exchange report references
Why these evidence types:
- They cover correctness, performance, reproducibility, and interoperability, which map directly to the scoring model.
6. Stack and Path Decision Record (must be filled)
Document this explicitly in your first IDA review:
- Chosen language/runtime and why it fits deterministic latency and memory targets.
- Rejected alternatives and why they were rejected for this project.
- Toolchain choices (build, test, benchmark, documentation) and rationale for each.
- Risk trade-offs introduced by your choices and how they are mitigated.
7. Definition of Done for IDA Baseline
- Every mandatory spec feature is mapped to at least one test
- Every public interface has a documented contract
- Every major risk has mitigation and validation method
- External reviewer can understand architecture and reproduce results
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