fpf.tools
Library / Systems Engineering Principles Framework
Jump to passage
In this reading
Source · lines 4929–4955

Link to current text

Published source confirmed at last check

Source changed 2026-10-03 02:22:15 UTC · snapshot created 2026-10-03 03:38:22 UTC · last check 2026-10-03 05:00:10 UTC

SYSE.3:4.2 - Describe one realization branch

Write one branch in ordinary language. Include only the distinctions that change the feasibility question:

  • the architecture result to be realized;
  • the pre-existing System, material, assembly, description, or other referent that would be changed, or the identity and completion conditions for a System that does not yet exist;
  • the intended change, production result, interface state, integration state, or configuration relation;
  • the proposed transformer System or unresolved need for one and the local TransformerSystemRole condition it would meet for this Work;
  • the needed Method, capability envelope, resource, tool or platform contribution, access condition, interface, integration, and configuration relation; and
  • the fact or specialist result that would make the branch usable, require its repair, or reopen an earlier answer.

Keep modal and actual claims apart. An intended change belongs in a plan or description until an actual continuing referent, boundary, conditions, and before/during/after facts satisfy A.3.4. When the proposed System does not yet exist, describe changes to pre-existing materials or assemblies and use A.15.PROD later for independently grounded identity inception and production completion. Do not describe transformation of a future System before it exists.

The claim that a candidate transformer will perform the Work is also modal. Name the candidate holder System, or the unresolved need for one, and the local TransformerSystemRole condition in the WorkPlan. Use A.2.1 only when an assignment occurrence actually obtains, and use A.2.2 only when the holder’s capability has a recoverable Work family, envelope, measures, qualification window, and currentness condition. Treat a job title, supplier category, tool list, past success, or Method description as possible evidence inputs; establish the capability claim through its Work family, envelope, measures, qualification window, and currentness.