# SQA Review Record: UCD-001 Use Case Diagram

## Metadata
| Key | Value |
| --- | --- |
| ID | RC-007 |
| CrossReference | [UCD-001], [QC-UCD-001] |

## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-04 | Accepted | Jens Tirsvad Nielsen | S01 | Initial version | [c7164fe] |

---

## Artifact Under Review

- Instance reviewed: [UCD-001]
- Checklist used: [QC-UCD-001]

## Checklist Results

| # | Criterion | Status | Evidence/Notes |
| --- | --- | --- | --- |
| 1 | Actors are defined with correct UML stereotypes (e.g. `<<System>>`, `<<Actor>>`) | Pass | Actor <<Actor>> and boundary <<System>> stereotyped. |
| 2 | System boundary is clearly drawn and labeled | Pass | Boundary rectangle labelled Higher Lower. |
| 3 | Include/extend relationships are used correctly per UML 2.5.1, not as generic "uses" arrows | Pass | No include/extend used; the Relationships section says so. |
| 4 | Every actor participates in at least one use case (no orphan actors) | Pass | Player is in Play a Game. |
| 5 | Diagram is traceable to a documented stakeholder need | Pass | Player traces to S01 and S02 in SA-001. |
| 6 | Use case names are verb phrases describing actor goals, not internal system operations | Pass | Play a Game is an actor goal. |
| 7 | Diagram is free of implementation detail (e.g. UI widgets, database tables) (Optional) | Pass | No UI or storage detail. |
| 8 | Actor and use case naming is consistent with corresponding Use Case and User Story documents (Optional) | Pass | Names match US-001 and UC-001. |

## 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 | — | — |

---

[UCD-001]: ../../use-case-diagram.md
[QC-UCD-001]: ../../../framework/qc/qc-use-case-diagram.md
[c7164fe]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/014-higher_lower/commit/c7164feab1333951bf6f557baf95a26764656be0