请帮忙用英语解释一下H Model, V model, W model

灵芝草

请帮忙用英语解释一下H Model, V model, W model

eightants

You can try to google these technical words.

For example:  Google V Model and check the listed web pages, you will get the following definition.

The V-Model, also called the Vee-Model, is a product-development process originally developed in Germany for government defense projects. It has become a common standard in software development. The V-Model gets its name from the fact that the process is often mapped out as a flowchart that takes the form of the letter V.

The development process proceeds from the upper left point of the V toward the right, ending at the upper right point. In the left-hand, downward-sloping branch of the V, development personnel define business requirements, application design parameters and design processes. At the base point of the V, the code is written. In the right-hand, upward-sloping branch of the V, testing and debugging is done. The unit testing is carried out first, followed by bottom-up integration testing. The extreme upper right point of the V represents product release and ongoing support.

The V-Model has gained acceptance because of its simplicity and straightforwardness. However, some developers believe it is too rigid for the evolving nature of IT (information technology) business environments.

kismania

so good

琢子

my english is so poor
i can't see the answer

goodgoodsutdy

2楼是个高手啊

goodgoodsutdy

That man is in the second floor is a master 拽一下