functional specification


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functional specification

(programming, project)
A description of what a system (e.g. a piece of software) does or should do (but not how it should do it). The functional specification is one of the inputs to the design process.

See IEEE/ANSI Std. 610.12-1990.

functional specification

The blueprint for the design of a system. With regard to a business information system, the specification provides the documentation for the database structure, the human and machine procedures, and all the input, processing and output detail for each data entry, query, update and report program. See information requirements.


References in periodicals archive ?
It is impossible to write functional specifications for large, innovative designs, except as an ongoing documentation of the discoveries and decisions of the team.
Air Traffic Management activities: functional specifications, system engineering, integration, validation and operational transition management for ATC in control towers, approach centres, area control centres and associated Safety Management Systems.
Application of systems analysis techniques and procedures, including consulting with users, to determine hardware, software or system functional specifications;
Functional specifications include -90 dBc at 10 kHz offset, -100 dBc at 100 kHz offset, band select switch, local attenuator adjust, lock alarm indicator, RS-485 address switch, RS-485 for attenuator control and band select.
"We chose an area operator with responsibility over both digesters and brown stock washers to spend two weeks working on the new system, with one week in developing regulatory controls, and one week in reviewing the detailed functional specifications," said Caraway.
According to TelephonyWorld, the programme also includes an AOL Client Certification Kit with user interface guidelines, branding elements and functional specifications for the mobile AIM and ICQ services; Access to AOL's Gateway server and an expedited AOL review process to speed up the approval of new AIM and ICQ clients for mobile devices.

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