prototype– a small-scale, incomplete, but working sample of a desired system. ?Accelerated systems analysis approaches –Discovery Prototyping –Rapid Architected Analysis
????? Discovery prototyping– a technique used to identify the users’ business requirements by having them react to a quick-and-dirty implementation of those requirements.
–Advantages ?Prototypes cater to the “I’ll know what I want when I see it” way of thinking that is characteristic of many users and managers. –Disadvantages ?Can become preoccupied with final “look and feel” prematurely ?Can encourage a premature focus on, and commitment to, design ?Users can be misled to believe that the completed system can be built rapidly using prototyping tools

? Rapid architected analysis– an approach that attempts to derive system models (as described earlier in this section) from existing systems or discovery prototypes.
?Reverse engineering– the use of technology that reads the program code for an existing database, application program, and/or user interface and automatically generates the equivalent system model.

轉載于:https://www.cnblogs.com/tony-fu/archive/2006/08/25/486660.html

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