014-higher_lower/docs/sqa/reviews/rc-010-ssd-001.md

SQA Review Record: SSD-001 System Sequence Diagram

Metadata

Key	Value
ID	RC-010
CrossReference	SSD-001, QC-SSD-001

Version History

Date	Status	Author	Reviewer	Change	Commit
2026-10-04	Accepted	Jens Tirsvad Nielsen	S01	Initial version	c7164fe

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Artifact Under Review

• Instance reviewed: SSD-001
• Checklist used: QC-SSD-001

Checklist Results

#	Criterion	Status	Evidence/Notes
1	Input/output messages match the corresponding Use Case's main success scenario step-for-step	Pass	startGame and makeGuess cover steps 1 to 7 of UC-001.
2	Actor and System are treated strictly as black boxes (system shown as :System)	Pass	Only Player and :System.
3	Object creation/destruction of the System instance handled explicitly where relevant (Optional)	Pass	Lifecycle notes state when the game starts and ends.
4	Return values are shown for operations that produce one, using dashed return arrows	Pass	Dashed returns on every operation.
5	Alternate/exceptional flows are represented separately (or explicitly out of scope noted)	Pass	Alternative flows noted as out of scope.
6	Message names are verb phrases consistent with the use case's system responsibilities (Optional)	Pass	startGame, makeGuess.
7	Diagram references the specific Use Case (name and ID) it depicts	Pass	Cites UC-001 Play a Game.

Overall Verdict

Go — all applicable criteria pass. Reviewer and author are both S01: the project has a single participant, so the framework's author/reviewer separation cannot be met. S01 accepted this deviation when requesting acceptance (2026-10-04).

Action Items

Action	Owner	Due
None	—	—

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