Function Point (FP)

A function point calculates software size with the help of logical design and performance of functions as per user requirements. It also helps in determining the business functionality of a software application. A function point has a number of benefits, including increase in productivity and reduction in the risk of inflation of created code. Function points can be derived from a software's requirements and can be estimated in the early phases of software development, before the actual lines of code can be determined. The number of function points in a code depends on function complexity.