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Week 13: Wrap-up Refining Class Diagram and Implementation

Week 13: Wrap-up Refining Class Diagram and Implementation. MSIS 670: UML Models. Refining the Class Diagram. From Activity Diagram and Sequence diagram, add the classes needed. Identify more attributes (instance variables) and methods needed.

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Week 13: Wrap-up Refining Class Diagram and Implementation

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  1. Week 13: Wrap-upRefining Class Diagram and Implementation MSIS 670: UML Models

  2. Refining the Class Diagram • From Activity Diagram and Sequence diagram, add the classes needed. • Identify more attributes (instance variables) and methods needed. • Modify relationships: e.g., an application class uses a data type, “has a” GUI, etc. • Visibility: • instance variables = private or protected, • methods = public or private

  3. Creating Random Access Files Figure 1

  4. Implementation • a Skelton Java code for classes will be created.

  5. A Skeleton Code • Declare public class ClassName • Attributes be its instance variables • Class diagram relationships for object references • Declare methods from third compartment

  6. Step 1: declare class Step 2: define instance variables Step 3: reference to objects Step 4: define methods Figure 2: Example of application skeleton code

  7. Figure 3: Example of GUI skeleton code

  8. Figure 4: Example of file skeleton code

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