UML & Together 2006 tutorial: UML & Together 2006 tutorial Hong Qing Yu 10/2006 Tutorial contents: Tutorial contents
Use case diagram
Homework UML Diagram – What is UML?: UML Diagram – What is UML? The Unified Modeling Language (UML) is a standard language for
Visualizing Constructing Documenting Business Modeling Communications Different Views: Different Views Users Designers Analyzers Use case diagram: Use case diagram Online C2C shopping overview the usage requirements
presentations project stakeholders
"the meat" of the actual requirements Actor Actor:
An actor is a person, organization, or external system that plays a role in one or more interactions with your system Use case Use case:
A use case describes a sequence of actions that provide something of measurable value to an actor and is drawn as a horizontal ellipse System boundary System boundary:
indicates the scope of your system. Anything within the box represents functionality that is in scope and anything outside the box is not Class Diagram: Class Diagram Class diagrams show the classes of the system, their interrelationships (including inheritance, aggregation, and association), and the operations and attributes of the classes. Name Attributes Operations Relations Associations
Generalization Relationships between Class Diagrams: Relationships between Class Diagrams Association -- a relationship between instances of the two classes. There is an association between two classes if an instance of one class must know about the other in order to perform its work. In a diagram, an association is a link connecting two classes.
Aggregation -- an association in which one class belongs to a collection. An aggregation has a diamond end pointing to the part containing the whole.
Generalization -- an inheritance link indicating one class is a superclass of the other. A generalization has a triangle pointing to the superclass. Sequence Diagram: Sequence Diagram A sequence diagram is
An interaction diagram that details how operations are carried out.
What messages are sent and when.
Sequence diagrams are organized according to time Object: Class Lifeline Operations Message Activities Diagram: Activities Diagram Activity diagrams describe the workflow behaviour of a system Start Fork Branch Merge Joint End State Machine Diagram: State Machine Diagram A State Machine diagram
shows the possible states of
the object and the transitions
that cause a change in state. ? What is different between activities and Statemachine diagram Practices Section: Practices Section
Online course register System
New students can register the course, modules and tutor by themselves.
Old students can register the new modules.
There are two kinds of students, undergraduates and postgraduates.
Postgraduates students needs to check the entrance requirements. Now we can start to use Together 2006: Now we can start to use Together 2006 ftp://ftpc.borland.com/pub/together/techpubs/tec2006/GettingStarted.pdf
In the first 1 hour, we do the Use case diagram, class diagram and sequences
In the second 1 hour, we do the activities diagram and state machine diagram
Reading list: Reading list http://www.agilemodeling.com/essays/umlDiagrams.htm