抛弃原型法与演化原型法的比较

对某些软件系统,在开发初期,用户不能清楚地描述系统需求,或者系统需求将来可能发生较大变化。如果采用传统瀑布模型开发这类软件,会因软件需求不确定导致无法开展软件的设计工作。文章从传统方法无法解决的上述问题出发,论述了为什么演化原型法更适宜开发需求随时可能发生变化的系统,而抛弃原型法更适宜开发用户不能清楚描述需求的系统。文章还通过具体实例进一步论证了上述观点。最后综合阐述了原型法在开发软件项目时的优势。

Comparison of Evolutionary Prototype and Throw-away Prototype

To some software systems, the requirements can not be depicted clearly by consumer at the early days of software development, or the requirements of some other systems will probably be changed in the future. If developing these types of system with traditional waterfalls model, the design can not be finished correctly, for the requirements of system are not determined. By the prototype method, the problem can be soluted, and the reasons are given. Some examples are also given to prove the above idea. And the advantages of prototype method used to develop the software program are synthesized.