026-nato-alphabet/docs/use-case-diagram.md

Use Case Diagram

Metadata

Key	Value
ID	UCD-001
CrossReference	SA-001, BC-001, US-001, UC-001
Language	en
Domain	it

Version History

Date	Status	Author	Reviewer	Change	Commit
2026-10-13	Accepted	Jens Tirsvad Nielsen	AI as stand-in for S01	Initial version, reviewed in RC-010	pending

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Purpose and Scope

The boundary is the NATO alphabet console tool. One actor, the User, asks the tool to spell a word. Everything outside the console program (the course platform, the git host, the wiki) is outside the boundary.

Diagram

@startuml
left to right direction
actor "User" <<Actor>> as U
rectangle "NATO alphabet tool" <<System>> {
  usecase "Spell a Word" as UC1
}
U --> UC1
@enduml

Actor Table

Actor	Stereotype	Stakeholder ID (SA)	Goals (use cases)
User	<<Actor>>	S01, S02	Spell a Word

Use Case Table

Use Case	Actor(s)	Goal
Spell a Word	User	Get the NATO code word of each letter of a word, so the word can be spelled out over the phone

Relationships

From	Relationship (<<include>> / <<extend>>)	To	Justification
None	-	None	A single use case has no include or extend relationship

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