• The altering, adjusting, or otherwise changing of one or more aspects of a component, circuit, device, piece of equipment, system, signal, material, procedure, configuration, function, or the like. Such modifications may be made, for instance, with the intention to improve, adapt, simplify, test, maintain, repair, study, or suit to needs which may vary or are unpredictable. Also, the specific changes made. The term usually implies that major changes are not involved.

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