61 lines
1.9 KiB
Markdown
61 lines
1.9 KiB
Markdown
# UC-001 Spell a Word
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## Metadata
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| Key | Value |
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| --- | --- |
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| ID | UC-001 |
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| CrossReference | [UCD-001], [US-001], [SA-001] |
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| Language | en |
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| Domain | it |
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## Version History
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| Date | Status | Author | Reviewer | Change | Commit |
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| --- | --- | --- | --- | --- | --- |
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| 2026-10-14 | Accepted | Jens Tirsvad Nielsen | AI as stand-in for S01 | Initial version, reviewed in RC-012 | [80ec1bc] |
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---
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**Format:** Fully Dressed
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## Fully Dressed
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- **Scope:** NATO alphabet tool
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- **Level:** user-goal
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- **Primary Actor:** User, as named in [UCD-001]
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- **Stakeholders and Interests:**
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- S01 — a correct result for every letter, kept simple
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- S02 — a readable behaviour that can be compared with their own solution
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- **Preconditions:** the NATO alphabet data is available to the tool
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- **Postconditions (success guarantee):** the User has seen the NATO code word of each letter of the word, in the order of the letters
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### Main Success Scenario
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1. The User starts the tool.
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2. The tool asks for a word.
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3. The User enters a word made of letters.
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4. The tool shows the NATO code word of each letter, in order.
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### Extensions (Alternative / Exception Flows)
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- 3a. The word contains a character that is not a letter:
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1. The tool catches the failed lookup (exception handling), tells the User to enter only letters of the alphabet and does not crash.
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2. The tool asks for a word again (back to step 2).
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### Special Requirements / Business Rules
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| Step | Rule |
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| --- | --- |
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| 3 | Upper-case and lower-case letters give the same result |
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| 4 | Each letter A to Z maps to exactly one code word from the supplied alphabet |
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### Open Issues
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- None.
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---
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[UCD-001]: ../use-case-diagram.md
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[US-001]: ../user-stories.md
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[SA-001]: ../stakeholder-analysis.md
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[80ec1bc]: https://git.tirsystem.com/Tirsvad-Udemy-100-days-of-code/030-nato-phonetic-alphabet/commit/80ec1bc3640e1aa2ad1f152b9f71df39fa71c2d1
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