This isn't a formal model (heh), it's simply my favorite analogy for software development.

这并不是一个非常正式的模型(呵呵)，我只是喜欢用它来代表软件开发。

youdao

Manufacturers can provide colorful formal model for color card for consumers to choose.

正规厂家能提供色彩丰富的样板色卡供消费者选择。

youdao

The architecture is expressed as a formal model in UML, using a tool like Rational Software architect to create it.

体系结构采用UML表述为正式的模型，要使用Rational Soft ware Architect之类的工具创建此模型。

youdao

Most observers say the more formal style of debate might favor Gore, while the less-formal model could give Bush an advantage.

CNN: Bush, Gore campaigns extend debate talks; no deal on format