Problem Decomposition

Problem  decomposition are sometimes  called   as partitioning that  is  an  activity  which  sits  at  core  of  software requirements analysis.   In the Duration of scooping activity there is no attempt to fully decompose the problem.  Somewhere decomposition is applied in 2 major areas: 1. the functionality which is delivered and (2) the process which will be used to deliver it.

Human beings is tend to apply a conquer strategy and divide when they are confronted with a difficult problem.   Stated simply  a complex problem is partitioned into smaller problems   which are more manageable. This is the strategy which is applied as project planning starts.  Software functions, described in the statement of scope which are evaluated and regained to give more detail prior to the starter of estimation because  both  the cost  and  schedule  estimated  are  functionally  oriented and  some  degree of decomposition is often useful.