requirement

n 1: required activity; "the requirements of his work affected

his health"; "there were many demands on his time" [syn:

{demand}]

2: anything indispensable; "food and shelter are necessities of

life"; "the essentials of the good life"; "allow farmers

to buy their requirements under favorable conditions"; "a

place where the requisites of water fuel and fodder can be

obtained" [syn: {necessity}, {essential}, {requisite}, {necessary}]

[ant: {inessential}]

3: something that is required in advance; "Latin was a

prerequisite for admission" [syn: {prerequisite}]

requirements

The first stage of software development which

defines what the potential users want the system to do. In

modern methods these requirements should be testable, and will

usually be traceable in later development stages. A common

feature of nearly all software is that the requirements change

during its lifetime.

See {software life-cycle}.

(1995-11-11)