DEMO // DEFECTS // INTERNAL-DEMO
DEFECTS

System Defect Investigation & Correction

A model-anchored defect workflow: each state requires specific evidence and each defect carries traceability links back to the originating requirement and verifying test — the same links the Role → MBSE Coverage Matrix demands.

◤ Flow

Defect Lifecycle State Machine

⟦ SysML Snippet — New → Triaged → Reproduced → RootCaused → Fix Proposed/Implemented → Verified → Closed ⟧
◤ Tracker

Open / In-Flight Defects

DEF-3104 · MDF / Crypto · SEV-1
MDL signature verification rejects valid ACURL builds after KMI rollover
OWNER: USRL / Crypto · REQS: SRS-EW-0214, SRS-CR-0019 · TESTS: TC-EW-0098, TC-CR-0044
RootCaused
Evidence required at this state
  • ▸Root cause statement
  • ▸5-Whys or fault tree
  • ▸Originating requirement gap (Derive link)
  • ▸Affected model elements (Blocks / Activities)
DEF-3118 · Datalink · SEV-2
MADL time-slot collision in 6-ship beyond 80 NM
OWNER: Datalink Planner · REQS: SRS-DC-0044 · TESTS: TC-DC-0061
Fix Implemented
Evidence required at this state
  • ▸Code change merged
  • ▸Model baseline tag
  • ▸Unit test additions
  • ▸Peer review record
DEF-3129 · Ground Security · SEV-1
DTC offload sanitize skips last block on PMBA v3
OWNER: ISSE · REQS: SRS-GS-0018 · TESTS: TC-GS-0030
Verified
Evidence required at this state
  • ▸Regression test result
  • ▸SIL/HWIL evidence
  • ▸Trace: Defect ↔ Requirement ↔ Test
  • ▸No new defects opened by the fix
DEF-3137 · Weapons · SEV-3
Weapon EZ rendering off by 0.4 NM at high AGL
OWNER: Weapon Planner · REQS: SRS-SW-0061 · TESTS: TC-SW-0102
Reproduced
Evidence required at this state
  • ▸Repro steps
  • ▸Environment (SIL / HWIL / Lab)
  • ▸Logs / artifacts captured
DEF-3142 · ALIS / Coalition · SEV-2
ALIS/ODIN sync drops releasability tag on partial fetch
OWNER: Coalition Gateway · REQS: SRS-CR-0007 · TESTS: TC-CR-0019
Triaged
Evidence required at this state
  • ▸Owner assigned
  • ▸Domain routed
  • ▸Priority
  • ▸Linked requirement(s)
DEF-3150 · Debrief · SEV-4
Debrief recon mis-aligns ADR clock by 1s on leap-second day
OWNER: Debrief · REQS: SRS-DB-0008 · TESTS: —
New
Evidence required at this state
  • ▸Reporter ID
  • ▸Build / version
  • ▸Observed vs expected
  • ▸Severity (1–4)
◤ Evidence Reference

Required evidence at every state

⟦ New ⟧
  • ▸Reporter ID
  • ▸Build / version
  • ▸Observed vs expected
  • ▸Severity (1–4)
⟦ Triaged ⟧
  • ▸Owner assigned
  • ▸Domain routed
  • ▸Priority
  • ▸Linked requirement(s)
⟦ Reproduced ⟧
  • ▸Repro steps
  • ▸Environment (SIL / HWIL / Lab)
  • ▸Logs / artifacts captured
⟦ RootCaused ⟧
  • ▸Root cause statement
  • ▸5-Whys or fault tree
  • ▸Originating requirement gap (Derive link)
  • ▸Affected model elements (Blocks / Activities)
⟦ Fix Proposed ⟧
  • ▸Design change (BDD/IBD diff)
  • ▸Requirement update (if any)
  • ▸Risk + mitigation
  • ▸SCCB ticket (SPER-####)
⟦ Fix Implemented ⟧
  • ▸Code change merged
  • ▸Model baseline tag
  • ▸Unit test additions
  • ▸Peer review record
⟦ Verified ⟧
  • ▸Regression test result
  • ▸SIL/HWIL evidence
  • ▸Trace: Defect ↔ Requirement ↔ Test
  • ▸No new defects opened by the fix
⟦ Closed ⟧
  • ▸CCB acceptance
  • ▸Release note entry
  • ▸Lessons-learned captured
⟦ Will Not Fix ⟧
  • ▸Rationale
  • ▸Risk acceptance memo
  • ▸AO acknowledgement (if security)
◤ Traceability

Links into the Role → MBSE Coverage Matrix