Q4. steps

1. Define the use case model. These steps used use diagrams and scenarios to illustrate the main events and actors in connection with the system.

2.Continue UML diagramming to model the system during the systems analysis phase. In this step, you will used activity sequence and collaboration diagrams.

3. Develop the class diagrams. This step, represent the classes and relationships among objects.

4. Draw statechart diagrams. In this step,modify further on class diagrams.

5. Begin systems design by refining UML diagrams and using them to derive classes and their attributes and methods.

6. Document your system design in detail. This step is critical. The more complete the information you provide the development team through documentation in UML diagrams, the faster the development and the more solid the final production system.