Monday 11 May 2015

How to calculate Requirement Stability Index ?

Requirement Stability Index (RSI) is used to measure the changes in the business requirement added or deleted compared to the original requirements decided at the start of the project.

How to calculate the Requirement Stability Index:

Requirement Stability Index = (Total number of original business requirements + Number of requirements changed till date+ Number of requirements added + Number of requirements deleted) / (total number of original requirements)

E.g.
No. of Original Requirements
No. of Requirements Changed
No. of Requirements Added
No. of Requirements Deleted
Requirement Stability Index
100
15
5
5
1.25

Requirement Stability Index = (100+15+5+5)/100
                                              =1.25


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