PSPS Object-oriented Design

Principles to Follow

1. Limited Access to the Database
2. Modularity
3. Assume the manual has been given as user requirements for a system yet to be built
4. Use OTS pieces, wherever possible
5. Use inheritance, wherever it helps Principle 2

 

Steps to Follow

1. Divide the functions into basic tasks, which will translate into Class groups .
2. Break each task into classes
3. Use inheritance to provide specific functionality
4. Create data classes to hold local data and separate data from functionality

Step 1