Plan Simplicity and Dependency Interface Research Note

Plan Simplicity and Dependency Interface Research Note

Interface management

https://ntrs.nasa.gov/api/citations/20170001761/downloads/20170001761.pdf

The NASA Systems Engineering Handbook describes interface management as crucial when work is divided among parties or products must interoperate. Its process includes defining interfaces, identifying characteristics, maintaining compatibility, controlling changes, and preserving configuration information.

NASA's handbook addresses systems engineering. A product or operating team does not need every artifact in that process. The useful transfer is that a dependency should be defined at the interface rather than managed through repeated assumptions about another team's internal work.

Shared understanding

https://atlas.northwestern.edu/papers/sharedTeam.pdf

The shared-mental-model meta-analysis supports the relevance of common task understanding while warning that measurement choices matter. It does not establish that shorter plans always perform better.

https://pubmed.ncbi.nlm.nih.gov/12237980/

Goal-setting research supports clarity and feedback as relevant design conditions. It does not justify deleting exceptions, safeguards, or technical detail.

Venture Step synthesis

A simple plan is not necessarily a short document. It gives the main execution path a low coordination burden while attaching detail to the decision or exception that needs it.

The one-page execution view should retain the outcome, critical sequence, owners, decision points, dependency interfaces, completion evidence, exceptions, and escalation path. Reference material, calculations, policy detail, and technical instructions can remain in linked appendices.

A dependency record should retain the shared outcome, provider, receiver, artifact or decision, acceptance evidence, due condition, current risk, change rule, escalation threshold, fallback, and next review.

Boundary

Regulated, safety-critical, financial, security, privacy, and technically complex work may require extensive detail. Simplification must not delete a control merely because it makes the main view cleaner.

Influence over a dependency is not authority over another team. Escalation is not betrayal. A useful escalation states the shared outcome, evidence, risk, attempted resolution, decision needed, and latest responsible decision time.