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011-black-jack/.claude/skills/artifact/references/UCD.md
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Tirsvad 1d35410b8d Add planning baseline: BC, SA, PP and two gateways
Create the Business Case, Stakeholder Analysis (S01 course participant,
S02 Udemy coursists, S03 GitHub viewers), Project Plan and the milestone
documents MIL-001 (project setup, 6 tasks) and MIL-002 (game
implementation, 8 tasks) for the console Blackjack game.

Register PP and MIL in the artifact registry, set the PO language to en,
and link the synced Gitea milestones in the Gateway Schedule.

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Use Case Diagram (UCD)

Cite in CrossReference only if the instance exists (new-artifact.sh checks this for you):

  • SA — Each actor traces to a stakeholder need — cite S-IDs
  • BC — Scope / objectives the boundary reflects
  • US — Forward: stories whose role must match an actor here
  • UC — Forward: the use cases detailing each goal shown

Required sections (after Metadata / Version History)

  1. Purpose and Scope — the system boundary in words.
  2. Diagram — actors with correct stereotypes (<<Actor>>, <<System>>), a labelled system boundary, <<include>> / <<extend>> used per UML 2.5.1 (not as generic "uses"). Embed PlantUML or link the diagram source; no UI or implementation detail.
  3. Actor Table — Actor | Stereotype | Stakeholder ID (SA) | Goals (use cases). No orphan actors: every actor appears in at least one use case.
  4. Use Case Table — Use Case | Actor(s) | Goal, names as verb phrases describing actor goals ("Place Order"), not system operations ("Validate Input").
  5. Relationships — every <<include>> / <<extend>> with a one-line justification.