Did you know that for software system developers the phrase "business" (as in "business requirements," "business layer," or "business specs") has a aim altogether divergent than its well-ordered workaday connotation?

For a software system engineer, a "business layer" has goose egg to do with commercialism commodity and work and production cremation or moving a tangible business; but everything to do near the way an "3-tier client-server architecture" is structured.

More specifically, a "business layer" is the negotiant sheet involving the "client" lode (or, the "front-end" or the Graphic User Interface (GUI), that is, some you see and interact with on a computing machine silver screen) and the "back-end" or the "server" band.

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When you click a intermingle on a web page, for example, you are at the "front end" and you are the "client."

The "business layer," or the "traffic cop" in between, takes that sound tell and sends it to the "back end."

If, for example, what you have requested for is a web page, the commercial division tells the web waiter to brainwave that leaf.

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And when the folio is found, again the enterprise lode delivers it to your peak.

If what you have clicked on the blind is a fastener for finding the cost of a folder (for guide), the enterprise level sends the "question" to the database in the stern end. The terms numeral obtained from the DB (database) dining-room attendant is sent backmost to your silver screen after endorsement finished the "business section."

A "business" veil is named specified because the rules according to which it acting "traffic cop" to the ingoing and outward signals ebb and flow from one firm to other. A construction company, for example, would necessitate a antithetical set of interactions linking its frontmost and rear ends than (let's say) a medical practitioner or a flower mercantile establishment.

That's why "business specs" or "business requirements" also vary from one business to other because they all stipulation their inputs (from the "client" seam) interact otherwise beside their web-servers or data-base servers (at the "server" echelon).

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