function point analysis
function point analysis A method derived originally by Albrecht at IBM to estimate the relative complexity and work content of developing a software system. The requirements of a software system are analyzed for five categories: inputs, outputs, files, interfaces, and enquiries. Each of these is then classified into parts that are simple, average, or complex. The results are represented as counts in a matrix with a total of 15 cells; each raw count is weighted by multiplying it by standard factors, and the unadjusted function point count, U, is then obtained by summing each cell-weighted value.
The processing complexity for the software is estimated for each of 14 general characteristics that cover the type of product, and how it is to be used and installed. For each characteristic a value is selected to represent its scale of influence. The 14 values are summed to give the processing complexity adjustment, PC, which will range from 0 to 70. The PC is used to calculate the adjusted function point score from its unadjusted score U. A measure of the work involved in developing the software is then obtained from a formula that allows for further score adjustments where necessary.
The processing complexity for the software is estimated for each of 14 general characteristics that cover the type of product, and how it is to be used and installed. For each characteristic a value is selected to represent its scale of influence. The 14 values are summed to give the processing complexity adjustment, PC, which will range from 0 to 70. The PC is used to calculate the adjusted function point score from its unadjusted score U. A measure of the work involved in developing the software is then obtained from a formula that allows for further score adjustments where necessary.
More From encyclopedia.com
Value , Value analysis, also known as value engineering, was developed by Lawrence D. Miles at General Electric during World War II. The technique simultaneo… Validation , Before social scientists can study the feelings, thoughts, behaviors, and performance of individuals, and before practitioners (such as therapists, c… Parameter , parameter
1. Information passed to a subroutine, procedure, or function. The definition of the procedure is written using formal parameters to denote… Complexity , A complex is a group of partially or totally unconscious psychic content (representations, memories, fantasies, affects, and so on), which constitute… White Blood Cell Count And Differential , Definition
A white blood cell (WBC) count determines the concentration of white blood cells in the patient's blood. A differential determines the per… Complete Blood Count , Definition
A complete blood count (CBC) is a series of tests used to evaluate the composition and concentration of the cellular components of blood.…
You Might Also Like
NEARBY TERMS
function point analysis