user defined function
(ū´z&r di-fīnd´ funk´sh&n) (n.) A programmed routine that has its parameters set by the user of the system. User defined functions often are seen as programming shortcuts as they define functions that perform specific tasks within a larger system, such as a database or spreadsheet program.
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User-centered design (UCD) is a design philosophy where the end-user’s needs, wants and limitations are a focus at all stages within the design process and development lifecycle. Products developed using the UCD methodology are optimized for end-users and emphasis is placed on how the end-users need or want to use a product instead of forcing […]
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Usability is a Web site design phrase that describes how well visitors can use a Web site. Good usability requires that the site be easy to navigate, have a decent layout, be consistent across all pages, and also be informative and useful to the visitor.