closed system

(redirected from closed standard)
Also found in: Dictionary, Medical, Wikipedia.
Related to closed standard: Open standard

closed system

[¦klōzd ′sis·təm]
(engineering)
A system for water handling that does not permit air to enter.
(thermodynamics)
A system which is isolated so that it cannot exchange matter or energy with its surroundings and can therefore attain a state of thermodynamic equilibrium. Also known as isolated system.

closed system

A heating or refrigeration piping system in which the circulating water or brine is completely enclosed and under pressure above atmospheric.

closed system

A system in which the specifications are kept secret to prevent interference from third parties. It inhibits third-party software from being installed; it keeps third-party hardware from interoperating with it, and it prevents third-party enhancements from improving the product. Contrast with open system. See proprietary standards.
References in periodicals archive ?
Many of the systems in use today across the securities industry have been built around proprietary, closed standards leaving users to rely on different instrument codes (or market data identifiers) in the trading, settlement or clearing process.
Integrating software such as Kasenna's MediaBase into our DSL4000 allows us to offer network operators a clear and effective alternative to video servers based on proprietary hardware or closed standards, with VOD functionality, such as pause," he added.
In his New Architect editorial, Barlow explores the problems with closed standards and fee-for-content systems, and explains how readers need to be more involved in the Internet legislation process.