1.9 KiB
1.9 KiB
System Sequence Diagram: Play a Game
Metadata
| Key | Value |
|---|---|
| ID | SSD-001 |
| CrossReference | UC-001, RC-010 |
Version History
| Date | Status | Author | Reviewer | Change | Commit |
|---|---|---|---|---|---|
| 2026-10-04 | Deprecated | Jens Tirsvad Nielsen | S01 | Initial version | 923dde7 |
| 2026-10-04 | Accepted | Jens Tirsvad Nielsen | S01 | Accepted after review RC-010 | c7164fe |
Source Use Case
UC-001 Play a Game, main success scenario. The alternative flows (invalid answer, tie, no account left) are out of scope for this diagram.
Diagram
@startuml
actor Player
participant ":System" as System
Player -> System : startGame()
System --> Player : accounts A and B
loop while the guess is right
Player -> System : makeGuess(choice)
System --> Player : right, score, new accounts A and B
end
Player -> System : makeGuess(choice)
System --> Player : wrong, final score
@enduml
System Operations Table
| Step | Message (verb phrase) | Parameters | Return | Use case step |
|---|---|---|---|---|
| 1 | startGame | none | accounts A and B | 1, 2 |
| 2 | makeGuess | choice (A or B) | right, new score, new accounts A and B | 3, 4, 5, 6 |
| 3 | makeGuess | choice (A or B) | wrong, final score | 3, 7 |
Steps 2 and 3 are the same operation; the loop shows the right-guess outcome repeating, and the last call shows the wrong-guess outcome.
Lifecycle Notes
A game starts with startGame and ends when makeGuess returns wrong; the System keeps the score and the current accounts in between.