You can implement them without significant engineering work or political negotiation. Once design and copy writing are complete, a developer can usually put these changes into action within three days. We see way too many Web sites like that. When the business fails because the site did not communicate, press and pundits blame the Internet. This is like blaming the entire field of advertising when a photo of the client's children does not sell office furniture.
Web design is communication.
It says specific things to specific people. It does this by offering meaningful content in the context of focused digital architecture. Navigation and interface are the doors to that architecture. The central goal of this book is to teach the reader how to design user interfaces that will enable people to learn computer systems quickly and use them effectively, efficiently, and comfortably. The interface issues addressed are primarily cognitive, that is, having to do with mental activities such as perception, memory, learning, and problem solving.