1. A Student Guide to Object- Orientated Development Chapter 2 Requirements for the Wheels case study system

2. Requirements engineering Three main stages: elicitation specification validation

3. Requirements engineering Elicitation Information is gathered: relating to the existing system current problems requirements for the future

4. Requirements engineering Specification When the information that has been collected it is ordered documented

5. Requirements engineering Validation The recorded requirements are checked to ensure that they are consistent with what the clients and users actually want and need.

6. Requirements elicitation: interviews It is useful to have an interview plan

7. Requirements elicitation: interviews Bike card: example of source document

8. Requirements elicitation: questionnaires

9. Requirements elicitation: scenarios

11. Requirements specification Purpose is to collate, order and record information gathered during the elicitation stage Examples: the Problem Definition, the Problems and Requirements List

13. Requirements specification: Problems and Requirements List

14. Requirements validation

15. Requirements for the Wheels system