Protype

最新推荐文章于 2024-02-22 09:09:22 发布

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最新推荐文章于 2024-02-22 09:09:22 发布

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原文链接：http://www.cnblogs.com/tony-fu/archive/2006/08/25/486660.html

本文介绍了信息系统开发中使用的两种方法：发现原型法和快速架构分析。发现原型法通过快速创建一个简陋的系统版本来帮助确定用户的真实需求。而快速架构分析则是从现有系统或发现原型中提取系统模型。

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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.

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