7. Compare A, B, B2, and R across the structures that change the decision
The alternatives share the receiving result but arrange Work and burden differently:
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 evidence arrangement | Allocation and stop |
|---|---|---|
A | use signed evidence before integration and hold one final reconciliation board | choose prospectively at D-21 when signed evidence is available or early-integration entry conditions are absent; under baseline D-8 availability it misses the target slot by thirteen days |
B | integrate from an explicit provisional edition at D-21, preserve its uncertainty and use, and reconcile it to signed evidence at D-8; safety engineer performs all signed-delta preparation | D-8 safety demand is 2.00 + 0.33 + 2.07 = 4.40 h, or 0.55; reject under the 0.40 peak-day limit |
B2 | same Work order and evidence-history rule as B, but supplier-configuration role performs 1.60 h of signed-delta preparation | D-8 safety demand is 0.40 + 0.33 + 2.07 = 2.80 h, or 0.35; moved supplier burden remains explicit |
R | after B2 entry and missing signed evidence at closure, preserve performed integration plus the provisional edition, uncertainty, and earlier use; on signed evidence, record the relation/delta, re-baseline, repeat comparison and affected verification, then retain, roll back, or repeat integration | withhold release; signed evidence supersedes provisional only for closure reliance; a full repeat includes 1.60 h supplier preparation plus 2.80 h safety preparation/board/trace-closure (0.40 + 0.33 + 2.07); affected verification/integration rework is additional and has no fixed case duration. An earlier stop records only the Work and burden actually incurred |
The provisional board occurs on D-21; the signed-evidence board occurs on D-8. Both last 20 minutes and therefore remain under the separate 45-minute limit. They do not occur on the same day. Per-release safety effort is 4.73 h for B and 3.13 h for B2 after the separate D-21 board is included. The selected D-8 peak-day result and per-release totals answer different burden questions.
Signed-delta preparation for B2
Under B2, the supplier-configuration role prepares the comparison of the signed supplier pinout received for closure with the exact provisional pinout edition used in D-21 integration. Retain both edition identifiers and the provisional uncertainty and use history; identify the changes, and use schema correspondence A-17 to locate the affected integration-bundle fields. SafetyReviewer-17 checks that comparison and identifies the affected traceability and verification checks for the safety board. The preparation result is a version-linked pinout-difference record with the affected checks, not a B-versus-B2 allocation decision or a release authorization. The assumed preparation burden remains 1.60 h supplier plus 0.40 h safety; performing affected verification, deciding safety closure, and any integration rework remain separate. Missing signed evidence invokes R as described in section 8.
ME.6 keeps several structures distinct:
- Method relations: the four identified Methods are co-used; every composition/order relation for
C-EC-Release-v2remains proposed; - Work relations: A is signed-first; B/B2 are provisional-first then signed reconciliation; each B2 branch that uses AI suggestions contains bounded human Work set
W-TraceAcceptReject-17with one accept/reject occurrence per used suggestion; R can occur only after B2 entry, retains already-performed Work, and repeats that trace-review Work for every repeated AI suggestion; - allocation: B overloads the safety engineer, while B2 transfers
1.60 hand stays within the peak bound; admitted SystemsTraceReviewer-17,SafetyReviewer-17, andReleaseDecider-17, their three covering assignments, trace permissionPERM-TraceAcceptReject-17, and the two direct authority relations remain separate; - subject/support/permission/authority: the three decision Systems and their Work remain distinct from their assignments, the trace permission, and the two direct authority relations; supplier configuration, PLM, test rig, and AI provider retain separate responsibility/access/support relations;
- description correspondence: checklist order corresponds only partially to Work overlap and branch stops;
- cultural relation: retention of a weekly-integration practice remains a later cultural-continuation question.
AD-EC417-B2-Trial-1 selects only a prospective three-release B2 trial under ASG-TraceReview-17, ASG-SafetyReview-17, ASG-ReleaseDecision-17, PERM-TraceAcceptReject-17, AUTH-SafetyEvidence-17, AUTH-ReleaseDecision-17, capacity, confidentiality, evidence, and reversibility conditions. It consumes DC-EC417-CadenceMismatch-1 as a non-causal rationale and treats the causal-use verdict as unsupported. A remains a pre-entry alternative. R is a post-entry recovery and can never become a retrospective A occurrence. No obtaining ArchitectureRelation or methodPartOf fact is asserted.