We automate specifications to get fast feedback, but our primary goal should be to create executable specifications that are easily accessible and human readable, not just to automate a validation process. Once our specifications are executable, we can validate them frequently to build a living documentation system. In this article from chapter 10 of Specification by Example, author Gojko Adzic discusses frequent validation. If you would like to purchase a copy of the full version of Specification by Example, you can do so here.....