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

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Presentation transcript:

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

Requirements engineering Three main stages: elicitation specification validation

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

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

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

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

Requirements elicitation: interviews Bike card: example of source document

Requirements elicitation: questionnaires

Requirements elicitation: scenarios

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

Requirements specification: Problems and Requirements List

Requirements validation

Requirements for the Wheels system

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