Process of Counting Function Points
Function point analysis follows specific steps for counting:
- Identification of the subsystem boundaries
- Identification of the data functions (internal logical files and external interface files)
- Identification of transactional functions (external inputs, external outputs and external inquiries)
- Calculation of the Unadjusted Function Point (UAF) Count
- Determination of the Value Adjustment Factor (VAF) using General System Characteristics (GSC)
- Calculation of the final Function Point Count