1. The generalization of class
Classifier
The generalization of class

2. Classifiers represent nouns
Classes
Objects
But also non-CS objects
Organizations
People

3. Symbol
A simple rectangle
with a name
A partitioned rectangle

4. Classifier Names Simple - myClass Path – java::awt::Rectangle
Name in italics means Abstract

5. Name
Attributes
Operations
Additional Partitions
Responsibilities
Exceptions

6. Attribute Syntax
[visibility] name [multiplicity] [: type] [= initial value] [{property string}]
Visibility
Public “+”, Private “-”, protected “#”
Multiplicity
“[0..1]”, “[1..*]”
Class Attribute (e.g. static) is underlined
Properties: “frozen”, “addOnly”

7. Operation Syntax
[visibility] name [(parameter-list)] [: type] [= initial value] [{property string}]
Parameter-list items:
[direction] name :type [= default value]
Directions is “in”, “out”, “inout”
Properties
“isQuery”, “sequential”, “guarded”, “concurrent”

8. Stereotyping
<<interface>>
RsClient

9. Relationships with Classifiers
<<interface>>
Generalization
Association
(navigation)
Realization

10. Associations Mult. Mult. Role Role Directionality with an arrow
Composition (when solid)
Aggregation

11. Dependency
<<interface>>

12. Kinds of Dependency (Stereotypes)
Friend
instanceOf
Use
Include
Extend
Call

13. Classifiers Appear in many of the nine diagrams
Syntax shown here is also extend in consistent ways to other diagrams and symbols