present state of the art approach to obtaining a software product is correct and complete web of conceptual schema, is represented by well-known design notations. Describing mature and consolidated approaches to developing complex applications, this edited book is divided into three parts and covers the challenges web application developers, the problem of design for web applications, and how to measure and evaluate web applications in a consistent manner. With contributions from leading researchers in the field this book will appeal to researchers and students as well as software engineers, software architects and business analysts.