Replacement Decisions for Evolving Software
نویسندگان
چکیده
E-type software, software implementing real world computer applications, must be continually evolved to maintain user satisfaction, generally over several years and releases. It is likely that the responsible organisation will, sooner or later, consider its replacement through redevelopment or acquisition. This paper discusses elements believed to be relevant in the context of replacement decisions, involving a phenomenology of software evolution and economic concepts. A procedure to obtain the optimal replacement time based on present value calculations is suggested.
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