IFEM phase · execution
Execution — IFEM Doctrine
Execution is where contributors make local implementation choices while preserving the external agreement already established by the contract.
Purpose
The purpose is to permit parallel progress without turning local speed into incompatible interpretations of the same boundary.
Inputs and responsibilities
Execution receives the contract, owned responsibility, implementation constraints, and the evidence required by the verification gates.
Outputs and artifacts
Its artifacts may include implementation increments, adapters, tests, migration notes, and an execution envelope that states what was changed and what remains.
Verification and decision gate
Verification checks that implementation satisfies the contract, respects ownership, and does not smuggle a new system decision into a local change.
Common failure modes
Local speed creates incompatible boundary interpretations, undocumented coupling, or implementation that passes a happy path while violating the agreed behavior.
Execution notes
Execution does not mean that every contributor works in isolation. It means coordination happens through an agreed boundary rather than through constant reinterpretation. Local implementation may choose storage, libraries, or internal algorithms, but those choices must preserve the contract’s observable behavior. Evidence produced during the work—tests, adapters, migrations, and change notes—makes the eventual verification gate more than a final opinion.