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Assignment 2: Requirements Analysis
Introductory Remarks
All solutions should be presented in the file ReverseVendingMachine.jude in your group's repository (T01-T04 is means T04-T07, sorry). You need the Community Edition of Jude 5.4 to view and edit this file. We have chosen this tool because it offers all what we need, it is lightweight and it is free. You need to register to download it.
Task 4: Use Case Model
Complete the textual description of the following Use Cases and create a Use Case Diagram:
- Returning Item
- Generate Daily Report
- Change Item
- Item is stuck
- Credit Customer Card
You find the flow of events of the first and a short description of the other use cases in the file ReverseVendingMachine.jude under T01 in your group's repository.
Task 5: Domain Object Model (Abbott's method)
- Extensive Sample Solution (A second file!)
Take the Use Case Model from Task 4 and create a class diagram that gathers the knowledge you can gain from the texts following Abbots's method as described in the lecture.
Task 6: Domain Object Model (Domain-Neutral Component)
- Sample Solution (Comparison still to come.)
Create a model of the domain following Peter Coad's approach described in the lecture, the first chapter of his book, or this comprehensive website. You can start from scratch or reuse your result of Task 5. Whatever you prefer. In any case make sure that you have a good understanding, why you choose which archetype for which class. Remember that not always all four archetypes are required. We looked up the colors for you. You can find them in the file ReverseVendingMachine.jude in your group's repository.
Compare the approaches from Russel J. Abbott (Task 5) and Peter Coad (Task 6) and tell us which one you would choose. Give us at least three arguments. [(Added later, therefore not required:) Before judging which one is “better” it would be interesting to characterize the differences in a few sentences.]
Task 7: Analysis Object Model OR Robustness Analysis
Create an Analysis Object Model for the whole system (List boundaries, controller, entities; And add arrows denoting which object talks to which object). OR Create a Robustness Diagram for the Returning item and Item is stuck use case together.
Task 8 (optional!): Sequence Diagram
In case you finished task 7 you can get additional points for creating a sequence diagram for the Returning item and Item is stuck use case. Part of this task is to derive some operations of the different analysis objects. Give a list of the operations you found.
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