What are the different approaches of systems analysis?

There are several different approaches to systems analysis:

1. Structured Systems Analysis and Design Method (SSADM) - this approach is a waterfall method that emphasizes data modeling, process modeling, and logical system design to produce a complete specification of the system.

2. Object-Oriented Systems Analysis (OOAD) - this approach is based on object-oriented programming concepts and emphasizes creating objects, classes, and attributes to define the system.

3. Agile Systems Analysis - this approach is based on the principles of agile software development, which emphasizes working software over documentation, customer collaboration, and responding to change.

4. Rapid Application Development (RAD) - this approach emphasizes an iterative, faster development process that involves working closely with end-users to identify requirements and create prototypes.

5. Business Process Reengineering (BPR) - this approach involves evaluating and improving business processes to achieve dramatic improvements in efficiency, cost savings, and quality.

6. Joint Application Development (JAD) - this approach involves bringing together users, stakeholders, and developers to work collaboratively to design and create the system.

7. Prototyping - this approach involves creating an initial version of the system to gather feedback and identify issues before creating the final system.