2 Starting with the Navigation Model
Our method supports the design of Web applications building conceptual, navigation and presentation models. Conceptual modeling of Web applications does not differ from conceptual modeling of other applications. Navigation design is a critical step in the design of Web applications. Even simple applications with a non-deep hierarchical structure will become complex very soon by the addition of new links. Additional links improve navigability on the one hand but imply, on the other hand, higher risk to loose orientation. Building a navigation model is helpful not only for the documentation of the application structure, it also allows for a more structured increase of navigability.