Q 1. You are

asked to design a software package for an On-line Banking System (OBS). The OBS will take requests from its user on the Internet. The requests include open an account with savings, checking, and CDs. Transfers between savings and checking, and Establish a CD are also among the requests. Close an account, or just close the savings account, withdraw CD are also permissible. Deposit, withdraw from a checking account are as routine requests.

First and the most important is to understand the requirements as stated above (customers mission statement).

Step 3.Derive User Interface from the Business Use Cases. Draw a few user interface sketches. Step 4.Draw a Use Case Diagram which consists of 5 use cases defined in Step 2. Step 5. Create Classes from Actors and Entities. Step 6. Write attributes and Operations (Methods) for each Class. The Operations are derived from Activities in the system. Step 7. Draw communication diagrams for the Use cases you defined in Step 2 and 4. This step is called Use Case Realization.

Step 8. Now you are at System Design Stage to make technology, and topology choices. That is to be done in the rest of this semester.