This is a great, concise infographic! If I were to suggest any improvements, it would be to address the content side of the equation. It’s the hardest part of any web project, and in many cases takes longer than the web development itself. In fact, a great design will build around the available content (as opposed to fitting content into a Lorem Ipsum design), so it should come early, definitely before design & development, likely around or shortly after site planning. For this step, consider both written content as well as photos (custom photography, stock), videos (videography, third party content), and major tools or features (e.g. the Behr ColorSmart application is a great example of the application itself being the “content” of the site.)