1. What is a dataset object and what is persistent object? When a designer should introduce a dataset into the design solution. Give an example. What is a dataset object? When a designer should introduce a dataset into the design solution. Give an example.
2. What is Master transaction update and how it relates to datasets/ What are the design criteria for this process?
3. Explain how object interact by exchanging messages. Give an example. What is the difference between a message and a method? How do you associate method and operation, event and state, interaction and message?
4. Explain events and their importance in dynamic modeling. Describe the different types of events by providing examples.
5. Explain sequence diagrams with an example. How they are different from use cases?
6. Explain the difference between sequence diagrams and collaboration diagrams? When would you use each?
7. What is the significance and components of a state chart diagram?
8. For the ATM case study choose one use case and create a sequence diagram, collaboration diagram and state chart diagram.
9. What is SAP ABAP. What you can do with ABAP (ie. object design)
1. Explain the flow and control design process. How does it relate to use case and sequence diagrams?.
Explain the statements “each use case is initiated, and controlled by a flow object”, “all messages between objects must be sent to the flow control object”.
A use case has 3 steps
1. Message 1 from object 1 to object 3
2. Message 2 from object 3 to object 2
3. Message 3 from object 2 to object 1
How the sequence diagram will be modified when flow design objects will be introduced?
2. What is an application control flow object and what are the standard activities when an web application starts;
3. When an application flow is activated login with 200 users each one loading an application object 2Gbytes how much memory is needed when 100 out of 200 users are online?
Draw a composition diagram for application flow with:
user 1 with access rights for use cases 1,2,3,4.
user2 access rights for use cases 1,4
What happens when user1 logs in and selects 5 times the use case3?
4. What is the role of the flow object? give an example.
5. What is the role of a dataset object? When is a good design practice to select to create a dataset object? Explain the statement “designing the dataset I should decide I would download/upload the database from/to dataset or have on the dataset only the objects”
6. What is a constructor and assessor methods?
7. What is utility class for garbage collection? How it relates to the dataset?
8. What is the web control model and how it is constructed?
9. What is “fault tolerant system” how it relates to cookies?
For the ATM use case you in 2.1:
10. Identify design objects (control, flow, lifecycle,) and create a structural diagram `(classes) sowings the relationships between them.
11. Redraw the sequence diagram including these design objects
12. How do you build entity and design objects in ORACLE ADF