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016-pretty-table/.claude/skills/artifact/references/SSD.md
T
Tirsvad b0a7414204 Add Pretty Table project: plan, accepted documents and code
Business Case, Stakeholder Analysis, Project Plan and milestone MIL-001
with review records RC-001 to RC-003, then the Python project: PrettyTable
Pokemon table, constants, pytest tests, pyproject.toml, Doxyfile, CI
workflow and README.

Task: MIL-001#1
Task: MIL-001#2
Task: MIL-001#3
Task: MIL-001#4
Task: MIL-001#5
Task: MIL-001#6
Task: MIL-001#7
Task: MIL-001#8
2026-10-07 12:02:59 +08:00

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System Sequence Diagram (SSD) (SSD)

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

  • UC — Required source of every SSD: cite the use case (name and ID) it depicts
  • DM — Concepts behind message parameters / returned values
  • OC — Forward: contract per system operation shown

Required sections (after Metadata / Version History)

  1. Source Use Case — name and ID ([UC-…]) and the specific scenario.
  2. Diagram — PlantUML sequence diagram with just the actor and :System; no internal objects. Dashed return arrows for operations that produce a result. One scenario per diagram — separate diagrams for alternate/exception flows (or state them out of scope).
  3. System Operations Table — Step | Message (verb phrase) | Parameters | Return | Use case step. Messages match the use case's main success scenario step-for-step; justify any deviation. Message names become the Operation Contract names.
  4. Lifecycle Notes — creation/destruction of the System instance where relevant (session/transaction scope).