Web modeling (aka model-driven Web development) is a branch of Web engineering which addresses the specific issues related to design and development of large-scale Web applications. In particular, it focuses on the design notations and visual languages that can be used for the realization of robust, well-structured, usable and maintainable Web applications. Designing a data-intensive Website amounts to specifying its characteristics in terms of various orthogonal abstractions. The main models that are involved in complex Web application design are: data structure, content composition, navigation paths, and presentation model. Several languages and notations have been devised for Web application modeling. Among them: HDM — W2000 RMM OOHDM the Interaction Flow Modeling Language (IFML), adopted by the Object Management Group (OMG) in March 2013 ARANEUS STRUDEL TIRAMISU WebML Hera UML Web Application Extension UML-based Web Engineering (UWE) ACE WebArchitect OO-H One of the main discussion venues for this discipline is the Model-Driven Web Engineering Workshop (MDWE) held yearly in conjunction with the International Conference on Web Engineering (ICWE) conference. Web design