Great web design requires combining traditional marketing wisdom with the latest technology and design trends. The infographic below from LA Website Design does a nice job of showing how these considerations fit together in effective modern website design.
Crucially, the infographic starts with “your target audience.” That needs to be the starting point for any new website or website redesign project. Elements like color, navigation flow, and special features will play roles in any website design project, but the decisions you make in each area will vary considerably based on your target audience.
Graphic design, website structure, and technology choices will be much different for a website targeted at lawyers than for one aimed at IT professionals or new parents.