The Web Development Process (A Guide)

However you might want to modify the end so that the business owners don't assume that the project is just "done" after launch. Rather, explain that good Web sites often need maintenance -- which could be as little as getting help making edits and inserting photos into a page, or as much as building out new features for the site and even doing a redesign based on feedback from visitors.

Also, it'd be good to better differentiate between who does the design and the development -- and let the business owner know that they can choose their own designer or rely on the developer to bring in someone (or do it themselves.) Each of those options has its own risks.