ME.6:5.3 - Possible-Future Alternatives: A, B, and B2
The EC-417 release scenario later asks how to handle provisional supplier evidence. Three alternatives differ by Work order and allocation:
For this constructed comparison, 2.07 h is safety-engineer time for traceability and safety-closure work: checking the current requirement–implementation–verification correspondences and preparing or recording the closure disposition. It excludes the separately counted signed-delta preparation and 0.33 h board, and any additional affected verification or integration rework.
| Alternative | Work and allocation structure | Capacity and consequence |
|---|---|---|
| A | wait for signed evidence before software integration; one final board | prospective pre-entry alternative; under baseline signed evidence at D-8, misses the D-21 integration slot |
| B | integrate from an explicitly versioned provisional edition at D-21, preserve that basis and uncertainty, and reconcile it to signed evidence at D-8; safety engineer performs all 2.00 h signed-delta preparation | on the D-8 peak day: 2.00 + 0.33 + 2.07 = 4.40 h, or 0.55 of an eight-hour day; exceeds the 0.40 limit |
| B2 | same Work order and evidence-history rule as B; supplier-configuration role performs 1.60 h of preparation and safety performs 0.40 h | on D-8: 0.40 + 0.33 + 2.07 = 2.80 h, or 0.35; the separate D-21 board makes per-release safety burden 3.13 h rather than B’s 4.73 h |
The first 20-minute board is on D-21; the second is on D-8. They occur on different days. The peak-day comparison and per-release burden are separate measures. Each board remains below the 45-minute meeting limit. Under B or B2, signed evidence supersedes the provisional edition only for safety-closure reliance; the provisional edition, uncertainty, use in D-21 integration Work, and relation and delta to the signed evidence remain traceable.
CUR-EC417-CadenceEffect-1 returns unsupported for the interventional claim that earlier reconciliation reduces reopenings. AD-EC417-B2-Trial-1 therefore consumes no positive causal premise. It consumes separately named non-causal DC-EC417-CadenceMismatch-1, the capacity comparison, confidentiality, the covering trace/safety/release assignments, PERM-TraceAcceptReject-17, the two independently supported direct authority relations, and reversibility to choose only three bounded B2 trials.
At the D-21 pre-entry checkpoint, ReleaseDecider-17 performs the branch decision under ASG-ReleaseDecision-17 and AUTH-ReleaseDecision-17, after the required safety-evidence decision under ASG-SafetyReview-17 and AUTH-SafetyEvidence-17. B2 entry also requires TraceReviewer-17 to perform W-TraceAcceptReject-17 under ASG-TraceReview-17 and PERM-TraceAcceptReject-17 for every AI suggestion used by the branch.
Before entry, choose A when signed evidence is already available or when versioned provisional evidence, supplier preparation, confidentiality, the trace-review assignment or permission, or a safety/release assignment or authority condition for B2 is absent. Once early B2 integration has occurred, A is no longer a possible history for that release.
Missing signed evidence at D-8 withholds release and starts recovery R. Preserve the performed integration record, exact provisional edition, uncertainty, and earlier use. When signed evidence arrives, record its relation and delta to the provisional edition, re-baseline, and repeat the comparison and affected verification. Retain or roll back/repeat early integration. For a full repeat of these recovery tasks, count 1.60 h supplier preparation plus 2.80 h safety preparation, board, and trace/closure work (0.40 + 0.33 + 2.07). Count affected verification or integration rework in addition; the case supplies no fixed duration for it. If recovery stops before those tasks finish, record the Work and burden that actually occurred rather than assigning the full repeat cost. Move only to the next authorized slot after repeated decision Work under the covering assignments and authority relations. Every repeated AI suggestion again requires the trace-review Work, assignment, and permission. Signed evidence supersedes provisional evidence for closure reliance without erasing the provisional history.
The architecture decision remains prospective. Implementation and the three trial releases are later Work. If signed evidence becomes available at D-21, sensitivity selects A prospectively; it does not rewrite a past B2 release.
In that pre-entry variant, suppose the existing signed-first arrangement has adequate current capability, capacity and release evidence, and the same comparison reveals no useful gain from provisional-first preparation. The team can finish by retaining A on that basis. Planning an extra B2 trial would consume the safety attention needed for the current release without changing this decision. Changed evidence timing or capacity can reopen the comparison. The baseline case still has a thirteen-day mismatch and supports the three bounded B2 trials under their stated conditions.