Business Web application design is too often neglected. I see a lot of applications that don't meet the needs of either businesses or users and thus contribute to a loss of profit and poor user experience. It even happens that designers are not involved in the process of creating applications at all, putting all of the responsibility on the shoulders of developers. This is a tough task for developers, who may have plenty of back-end and front-end development experience but limited knowledge of design. This results in unsatisfied customers, frustrated users and failed projects. So, we will cover the basics of user interface design for business Web applications. While one could apply many approaches, techniques and principles to UI design in general, our focus here will be on business Web applications.