A Flexible and Efficient Presentation-Architecture for Adaptive Hypermedia: Description and Technical Evaluation
Abstract:
Means of achieving personalization in theWeb are Adaptive
Hypermedia techniques and the flexible composition of
learning content from individual learning objects. If the objects
are represented in a format different from the presentation
format (e.g. as XML as opposed to HTML), a potentially
expensive transformation process is required. Furthermore,
caching becomes impractical depending on the
degree of personalization, as the dynamic information is
available at presentation time only and varies for each user.
In this paper we present a flexible and efficient presentation
pipeline based on a Model-View-Controller architecture,
which overcomes performance problems and couples
caching and personalization. It transforms single learning
objects and uses a view-layer for adaptive presentation
and navigation support that provides additional advantages
such as incremental rendering and the easy adaption to different
layout styles. Both theoretical and simulation results
prove the efficency of this architecture.
Published:
Proceedings of the International Conference on Advanced Learning Technologies, ICALT 2004,
Kinshuk and Chee-Kit Looi. Erkki Sutinen, Demetrios G. Sampson, Ignacio Aedo, Lorna Uden, and Esko Kähkönen (eds),
IEEE.
, 2004