Function Point Analysis

The most flexible, accurate, and widely used measuring tool for getting a feel for the size is Function Point Analysis. The five datums on which it is based are as follows:

♦ Internal stores of data

♦ External references to data

Such information should be known at the planning stage. If the datum sizes aren't known, they can be assumed with from/to indications that can be estimated. Function Point thus gives you indications of the project's complexity before you start. The calculation is typically quick.

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