Tuesday, May 17, 2011

What is Functional point analysis(FPA)?

FPA is a method to determine the functional size of an information system or project. The functional size may be used for different purposes, for example budgeting. The measurement is independent of the technology. This measurement may be used as a basis for the measurement of productivity, the estimation of the needed resources, and project control.
 
FPA carries out the following steps to determine the size of an information system or system development project:
• Step 1: Identify the functions of the system that are relevant to the user
• Step 2: Determine the functional complexity of each function
• Step 3: Calculate the unadjusted function point count of the system
• Step 4: Rate the general requirements for the system using the 14 general system characteristics
• Step 5: Calculate the adjusted function point count of the system

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