"The V model, shown in Figure 3-2, follows the same basic steps as the Waterfall model but emphasizes the development of testing criteria early in the development life cycle."
via Check out this quote from Write Great Code, Volume 3 - https://learning.oreilly.com/library/view/write-great-code/9781098125660/xhtml/ch03.xhtml
V modelがやりたいことかも。
"The big difference here from the Waterfall model is that the engineer implements test cases and procedures early on, so by the time coding begins, the software engineer can use existing test procedures to verify the code’s behavior during development. Known as test-driven development (TDD), in this approach the programmer constantly runs tests throughout the development process. Continuous testing allows you to find bugs much sooner and makes it cheaper and faster to correct them."
via Check out this quote from Write Great Code, Volume 3 - https://learning.oreilly.com/library/view/write-great-code/9781098125660/xhtml/ch03.xhtml
V modelではTDDとの関係性が強調されている。
