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[[da:Metrik]]
[[da:Metrik]]


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'''''The Metric System''''' is a common term for the '''[[SI|International System of Units]]''' for weights and measures. See [[metrication]].


* [[SI|International System of Units]], colloquially called the Metric System, and also [[metrication]].
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* [[Software metric]].
* [[Metric space]], treating a mathematical abstraction of the notion of ''distance''.
* [[Metric tensor]]
* [[Normed vector space]]
* ''Metric'' and ''metrical'' refer to the topic treated in [[meter (music)]].


{{msg:disambig}}
In [[software]], '''metrics''' (most commonly referred to in plural) are:
* measurable characteristics of a system in development, e.g. a computer program or a software product, used for research and control in order to improve a company's work processes, or even the state of the art of software development as a whole (metrics studied as part of academic research projects)
* or, well-defined characteristics used to determine the performance and suitability of a production system, i.e. a software product in actual operation; such metrics are used to monitor the behaviour of the product for evaluation purposes (over periods of time, and/or against competing products)

See [[software metric]]s for the first meaning of the concept.

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In [[mathematics]], a '''metric''' (also called '''distance metric''') is an abstraction of the notion of ''distance''; it is used to define [[metric space]]s. The article on [[metric space]]s contains a detailed discussion of the topic.

''See also'':

*[[Metric tensor]]
*[[Normed vector space]]

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In [[music]], ''metric'' and ''metrical'' refer to [[meter (music)]]. '''Metric structure''' includes meter, [[tempo]], and all [[rhythm]]ic aspects which produce temporal regularity or structure, against which the foreground details or [[durational pattern]]s are projected (DeLone et. al. (Eds.), 1975, chap. 3).

[[Rhythmic unit]]s be metric, intrametric, contrametric, or extrametric.

'''Metric level'''s may be distinguished. The [[beat level]] is the metric level at which pulses are heard as the basic time unit of the piece. Faster levels are [[division level]]s, and slower levels are [[multiple level]]s. (DeLone et. al. (Eds.), 1975, chap. 3).

A [[metric modulation]] is a [[modulation]] from one metric unit or meter to another.

===References===
*DeLone et. al. (Eds.) (1975). ''Aspects of Twentieth-Century Music''. Englewood Cliffs, New Jersey: Prentice-Hall. ISBN 0130493465.

Revision as of 17:12, 25 May 2004


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