Appendix C¶
National Aeronautics and Space Administration. Appendix C: How to Write a Good Requirement. NASA Systems Engineering Handbook.
Cited by¶
1 citation across 1 artifact.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Necessity and Sufficiency
- NASA’s systems-engineering guidance explicitly asks whether required functions are individually necessary and together sufficient for system goals, and separates verification against “shall” statements from validation of intended purpose.
This sourceOfficial guidance asking whether functions are necessary and together sufficient for system goals and requiring measurable, verifiable criteria.
- NASA’s systems-engineering guidance explicitly asks whether required functions are individually necessary and together sufficient for system goals, and separates verification against “shall” statements from validation of intended purpose.
Verification¶
Does it exist? Not checked yet. This entry carries no identifier to resolve. It was extracted from the citation as written in the article, normalized, and deduplicated against the rest of the registry.
Does it back the claim? Not recorded. The single citation of this work carries no recorded support check.
Support is checked per citation rather than per work — the same source can be cited soundly in one article and wrongly in another. Per-citation recording began recently, so a citation with no recorded check is a gap in the record rather than evidence it went unchecked.
See how references were verified.
Registry ID ref:b81fe1b9a0a0 · see in the full table