A System Development Method
نویسندگان
چکیده
A development method may be regarded as a path or a procedure by which the developer proceeds from a problem of a certain class to a solution of a certain class. In trivial cases, the method may be fully algorithmic; for example, there is an algorithmic procedure for obtaining the square root of a nonnegative number to any desired degree of accuracy. In more interesting cases, such as the development of computer-based systems for purposes such as data processing or process control, we do not expect to find an algorithmic method: the goal of the development is not precisely defined, and neither the problem nor the set of possible solutions is sufficiently well understood. But a method, to be worthy of the name, must at least decompose the development task into a number of reasonably well-defined steps which the developer can take with some confidence that they are leading to a satisfactory solution.
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