User Experience
Usability guidance
Applying usability principles and testing your site can help ensure that people can find things on your web site or successfully use your application. Testing can also reveal problems or gaps with your interface - this can save money if done before you launch your site or application.
Web Information Architecture, web navigation design and concept testing
You need to make sure that your web site is designed so that people can find information easily. Web information architecture is the process of providing logical pathways and sections of web content. You can also make it easier for people to find things by testing the navigation of your site both during and after its development.
Web content inventory and audit
Before you can redesign your web site you need to understand what content you have and what you need to do to it. Web auditing is the process of reviewing all this information for currency, relevance and quality.