A brief look inside the UML Metamodel

1. A look inside UML
Or how does UML exactly work?

2. About me
●
Yoan-Alexander Grigorov
●
PHP Dev
●
UML Certified (OCUP)

3. Part I: A brief introduction to UML
For those who are not familiar...

4. What is UML?
●
Unified Modeling Language
●
Notations
– Graphical representation of classes, objects, flows,
interactions, use cases, etc.
●
Used in a broad range of areas
●
Mainly applied in Object-Oriented Programming

5. Fundamental UML diagrams
●
Class diagrams
●
Activity diagarams
●
Interaction diagrams
●
Use Case diagrams

6. Class diagrams

7. Simple class inheritance example

8. Class attributes and operations

9. Associations

10. Associations
Aggregation
Composition

11. Let's draw some class diagrams!

12. Sequence diagrams

15. Let's draw some sequence
diagrams!

16. Use case diagrams

18. Part II: The UML Metamodel
The building blocks of UML

19. How is UML specified?

21. What is the metamodel?
●
A library written entirely in UML
●
Classes, defining all UML elements
●
A UML that describes UML (!?)
●
Think of it like a C++ compiler for the C++
language

22. Package 1: Class Diagrams

23. General description of a class

25. Brief specification of a class
property

27. A brief specification of class
operation

29. Package 2: Sequence Diagrams

30. Interactions specification

32. Lifelines specification

34. Messages specification

36. Package 3: Use case diagrams

37. Use cases and actors specifications

39. Part III: UML Usage in real life

40. Where is UML applied
●
Whiteboard!
●
Forward engineering – BAD idea
●
Documentations & specifications
●
Agile processes, SCRUM

41. UML Tools
●
Windows
– Enterprise Architect
●
Linux
– BoUML
●
Online
– LucidChart
– Genmymodel.org (very good)

42. UML Certification
●
Fundamental
●
Intermediate
●
Advanced

44. Sources