Modeling Form-Based Systems -- The Form-Based System Paradigm -- Exploring the Online Bookshop -- Form Storyboarding -- Formcharts and Dialogue Specification -- Model Decomposition and Refinement -- Data Modeling -- Message-Based Modeling of Data Interchange -- A Descriptive Approach -- Tool Support -- Forward Engineering and Reverse Engineering -- Typed Server Pages -- Semantics -- The Integrated Source Code Paradigm -- State History Diagrams -- Semantics of the Data Model -- Semantics of Web Signatures -- Conclusion -- A Comparison of Modeling Methods -- Summary.Form-based applications range from simple web shops to complex enterprise resource planning systems. Draheim and Weber adapt well-established basic modeling techniques in a novel way to achieve a modeling framework optimized for this broad application domain. They introduce new modeling artifacts, such as page diagrams and form storyboards, and separate dialogue patterns to allow for reuse. In their implementation they have developed new constructs such as typed server pages, and tools for forward and reverse engineering of presentation layers. The methodology is explained using an online bookshop as a running example in which the user can experience the modeling concepts in action. The combination of theoretical achievements and hands-on practical advice and tools makes this book a reference work for both researchers in the areas of software architectures and submit-response style user interfaces, and professionals designing and developing such applications. More information and additional material is also available online.