018-turtle/docs/sqa/traceability-matrix.md

Traceability Matrix: Turtle Challenges

Metadata

Key	Value
ID	TM-001
CrossReference	BC-001

Version History

Date	Status	Author	Reviewer	Change	Commit
2026-10-08	Proposed	Jens Tirsvad Nielsen	S01	Recorded the verdict Go-with-conditions of RC-018	54f60a9
2026-10-08	Proposed	Jens Tirsvad Nielsen	S01	Recorded the verdict Go of RC-019, the re-check of RC-018	6dac0d6

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Purpose

Tracks backward/forward links between artifact instances so that the Business Case's cross-artifact traceability success criterion is measurable. A row is added or updated whenever an artifact instance is created or reviewed.

Traceability Table

Artifact Instance	Type	Language	Domain	Upstream (Backward Link)	Downstream (Forward Link)	Last Reviewed (RC-ID)
BC-001	BC	en	it	SA-001	PP-001, MIL-001, MIL-002, MIL-003, MIL-004, DICT-001	RC-008 (draft re-review of RC-001, Go)
SA-001	SA	en	it	-	BC-001, DICT-001	RC-009 (draft re-review of RC-002, Go)
PP-001	PP	en	it	BC-001, SA-001	MIL-001, MIL-002, MIL-003, MIL-004	-
DICT-001	DICT	en	it	BC-001, SA-001	-	RC-007 (Go)
MIL-001	MIL	en	it	BC-001, PP-001	MIL-002	RC-010 (draft re-review of RC-003, Go)
MIL-002	MIL	en	it	BC-001, MIL-001	MIL-003	RC-011 (draft re-review of RC-004, Go)
MIL-003	MIL	en	it	BC-001, MIL-002	MIL-004	RC-012 (draft re-review of RC-005, Go)
MIL-004	MIL	en	it	BC-001, MIL-003	-	RC-013 (draft re-review of RC-006, Go)
Python source code of milestone 001 (src/, tests/, branch mil-001-project-foundation)	PY	-	-	MIL-001	-	RC-014 (Go)
Python source code of milestone 002 (src/, tests/, branch mil-002-square-and-dashed-line)	PY	-	-	MIL-002	-	RC-015 (Go)
Python source code of milestone 003 (src/, tests/, branch mil-003-shapes-and-random-color)	PY	-	-	MIL-003	-	RC-016 (Go)
Python source code of milestone 004 (src/, tests/, branch mil-004-random-walk-and-spirograph)	PY	-	-	MIL-004	-	RC-017 (Go)
Success criteria of BC-001, checked against the delivered repository for the gate of MIL-004	BC	en	it	BC-001, MIL-004	-	RC-019 (Go), the re-check of RC-018 (Go-with-conditions)

Coverage Notes

• - in Upstream means foundational (SA-001 is the foundation of the stakeholder IDs); in Downstream it means nothing is built on it yet (MIL-004 is the last gateway; the source code is listed per milestone in the PY rows); in Last Reviewed it means no RC-* exists.
• PP-001 has no RC-* because the Project Plan has no QC checklist; the Product Owner accepted it directly on 2026-10-08.
• The PY rows list the Python code each milestone added or changed, reviewed against QC-PY-001. Their records, RC-014 to RC-017, ended in Go on 2026-10-08; a - in Language and Domain is right for source code, a technical type.
• RC-018 checks the seven success criteria of BC-001 against the delivered repository, as the evidence for the gate of MIL-004. It ended in Go-with-conditions on 2026-10-08: criterion 5 is not met until the code is on main and on GitHub, and its first three action items are the conditions. A later record that names it re-checks them. Its conditions were re-checked in RC-019, which ended in Go on 2026-10-08, so the row lists RC-019 as the latest record.
• Each artifact lists its latest review record: the delta re-review (RC-008 to RC-013) of the first review (RC-001 to RC-006), or RC-007 for DICT-001. All of them ended in Go on 2026-10-07.
• S01 is the author and also the reviewer of every artifact. The review process does not allow this; S01 accepted the deviation in chat on 2026-10-07 because the project has one person and no governance document (GOV) exists.
• No instance exists yet for the types KPI, RA, BMC, BPMN, UCD, US, UC, DM, SSD, OC, SD, DCD, ERD, ADR, GOV or TRR. One of them matters for the open reviews: GOV (the rule that the reviewer is not the author).

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