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custom software
subject			fact

custom software	can be made generic but this can be a complex process if the software was not designed in a flexible way
	has definition Software developed to meet the needs of a particular customer
	has definition Software that is developed to meet the specific needs of a particular customer (in contrast to generic software)
	has global CPU usage low
	has global development effort high
	has global number of copies low
	has example web sites, air-traffic control systems and software for managing the finances of large organizations
	is what most software developers work on
	is a subtopic of 1.1 - The Nature of Software
	is developed for a particular customer
	is often developed in-house
	is typically used by only a few people
	is a kind of software
	may be contracted-out to a consulting company
software	can be easily duplicated
	can have usability without utility^2
	can have utility without usability
	deteriorates as it is changed repeatedly
	does not wear out with use like other engineering artefacts
	has quality which is only as good as its lowest-quality reusable component
	is designed usually for human beings to use
	must be designed with users' input otherwise it may not be usable
	often has a poor design and is steadily becoming worse

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