Don't forget about specific types of relationships in class diagram.
Methods can be perceived as CRUD operations over data layer (as captured by ERD).
Domain Understanding and Modeling
Week 7 - Class diagram / Sequence diagram
- UML Diagrams overview
- Sequence diagram
- Purpose & Notation
- Consistency with Use Case / Class diagram
- Class diagram
- Purpose & Notation
- Relation and consistency with ERD
Slides in English:
Chyba: Odkazovaný objekt neexistuje nebo nemáte právo jej číst.
https://is.muni.cz/el/fi/podzim2024/PA116/um/en/DUM_08_CLASS_SEQ.pdf
Recorded lecture in Czech/English:
Chyba: Odkazovaný objekt neexistuje nebo nemáte právo jej číst.
https://is.muni.cz/el/fi/podzim2024/PA116/um/vi/85650460/
Chyba: Odkazovaný objekt neexistuje nebo nemáte právo jej číst.
https://is.muni.cz/el/fi/podzim2024/PA116/um/vi/120258079/
Seminar Briefing in English:
Chyba: Odkazovaný objekt neexistuje nebo nemáte právo jej číst.
https://is.muni.cz/el/fi/podzim2024/PA116/um/seminar_briefings/Class_diagram___Sequence_diagram.mp4
Seminar tasks:
- Create 1 Sequence diagram (in the scope of one use case) [2 pts].
- Create a class diagram of your system [3 pts].
Consistency checklist
Sequence diagram
- Actor name consistent with use case diagram
- Classes name consistent with class diagram
- Message flows consistent with methods in class diagram
Class diagram
- weak consistency with ERD - not necessarily a 1:1 mapping (class<=>entity sort) because of normalization rules applied to ERD
- it may happen that not every class has to be persisted - hence it will not be found in ERD