Note: - It’s rare that some one will ask you to say full details of function points in one shot. They will rather ask specific sections like GSC, ILF etc. The main interest of the interviewer will do you have a broader idea of estimating using function points.
“This document contains material which has been extracted from the IFPUG Counting Practices Manual. It is reproduced in this document with the permission of IFPUG.”
Function Point Analysis was developed first by Allan J. Albrecht in the mid 1970s. It was
an attempt to overcome difficulties associated with lines of code as a measure of software
size, and to assist in developing a mechanism to predict effort associated with software
development. The method was first published in 1979, then later in 1983. In 1984 Albrecht refined the method and since 1986, when the International Function Point User Group (IFPUG) was set up, several versions of the Function Point Counting Practices Manual
have been coming out.
“The best way to understand any complicated system is breaking the system in to smaller subsystem and try to understand those smaller sub-systems . In Function Point you break complicated huge system into smaller systems and estimate those smaller pieces, then total up all the subsystem estimate to come up with final estimate.”
Following are some terms used in FPA [Function Point analysis].