Stage 2: Change Analysis and Costing

(1) The effect of the proposed change is assessed using traceability information

(2) The cost of making the change is estimated in terms of modifications needed to the requirements document

(3) The cost is estimated in terms of any modifications needed to the system design and implementation

(4) A decision is made whether or not to proceed with the requirements change

Explanation

Change Analysis and Costing involves: assessing the effect using traceability information, estimating the cost of modifying the requirements document, estimating modifications to design and implementation if appropriate, and making a decision on whether to proceed. Only after this analysis is a decision made — changes are not implemented directly at this stage.