AHAM: a Dexter-based reference model for adaptive hypermedia

摘要: Hypermedia applications offer users the impression that there are many meaningful ways to navigate through a large body of information nodes. This rich link structure not only creates orientation problems, it may also be source comprehension problems when follow paths which author did foresee. Adaptive techniques have been used by number researchers [1, 2, 4, 5, 6, 7, 8, 9, 10, 17, 19, 20, 22] in an attempt guidance and support for structures. The majority these adaptive hypermedia systems (AHS) educational applications. terminology this paper has “flavor”. However, some on-line (or “kiosk”systems), retrieval systems, other In we describe reference model applications, called AHAM, encompasses most features supported exist today or being developed (and published about). Our description AHS is based on Dexter [15, 16], widely hypermedia. kept somewhat informal order able explain AHAM rather than formally specify it. augments with doing adaptation user persists beyond duration session. Key aspects are: Paul De Bra affiliated University Antwerp, Belgium, “Centrum voor Wiskunde en Informatica” (CWI) Amsterdam. yGeert-Jan Houben Origin Eindhoven. domain model, teaching consists pedagogical rules. We give formal definition each (sub)models (but rules informally throughexamples). distinguish notions concept, page fragment. confused. provide formalism lets authors write (about concepts) such way they can applied automatically. illustrate various means well-known [6, 10].