原型法在软件项目中的运用

The Usage of Prototyping in the Software Program

随着软件开发进入"软件工程"时代,出现较早的软件开发方法为生命周期法,瀑布模型则为这种方法的代表模型。瀑布模型依赖于早期对用户进行的需求调查,当用户难以表达真正的需求或发生需求变更时,瀑布模型便难以解决其二义性问题,无法适应用户需求的变化。使用原型法可以有效地解决此类问题。原型法使用模型让人们快速认识系统,根据原型反复修改,应变能力强。研究结果表明,软件产品规模比较大,涉及的算法比较多,无法在短时间内给用户直观的体验等情况适合采用原型法。

Since software development entering the ＂software engineering＂ era, a new method that appeared earlier is life style. The representative of the method is waterfalls model. The waterfalls model depends on the demand survey at the early days of software development. But when the requirements can not be depicted clearly by consumer or the requirements will probably be changed in the future. The software development with waterfalls model can not be finished correctly. Prototyping can effectively solve these problems. Prototyping using a model system to make people fast recognition system, repeatedly modified according to the prototype Modify repeatedly, highly adaptive. The results show that, if the size of the software product is large, the algorithm more involved, and it can＇t give the user experience in a short time, which are suitable with the prototyping.