Function (engineering)

In engineering, a function is interpreted as a specific process, action or task that a system is able to perform.[1]

In engineering design

In the lifecycle of engineering projects, there are usually distinguished subsequently: Requirements and Functional specification documents. The Requirements usually specifies the most important attributes of the requested system. In the Design specification documents, physical or software processes and systems are frequently the requested functions

In products

For advertising and marketing of technical products, the number of functions they can perform is often counted and used for promotion. For example a calculator capable of the basic mathematical operations of addition, subtraction, multiplication, and division, would be called a "four-function" model; when other operations are added, for example for scientific, financial, or statistical calculations, advertisers speak of "57 scientific functions", etc. A wristwatch with stopwatch and timer facilities would similarly claim a specified number of functions. To maximise the claim, trivial operations which do not significantly enhance the functionality of a product may be counted.

gollark: Because overlay glasses "good" and "optimized" it tends to horribly kill FPS somehow.
gollark: I believe I briefly had a thing to render text on my overlay glasses too.
gollark: Oh yes, you can do that with a monitor and Plethora keyboard, right.
gollark: Like all correct people, I have a 1080p monitor, which has at least 4 times the size.
gollark: It's not just edit. You also have the tiny 51x19 screen.

References
  1. R.Barker, C. Longman, Case Method: Function and Process Modelling, Addison-Wesley Professional, 1992.

See also
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