Part II, including Chapters 2-5, is dedicated to the presentation of the modeling languages used in the book.
It describes the primitives of the Entity-Relationship data modeling
language; the WebML hypertext modeling language, which is
based on the notion of units, pages, and links; the extension of the hypertext model for supporting
content management functions, like the update of personal information, the
filling of shopping carts, and so on.
Models for designing Web applications :.