Adaptive hypermedia
[7] The system categories in which user modelling and adaptivity have been deployed by various researchers in the field share an underlying architecture.[11] A cognitively valid domain model should capture descriptions of the application at three levels,[8] namely: Each content concept has a set of topics.[10] The two main aspects to the interaction model are capturing the appropriate raw data and representing the inferences, adaptations and evaluations which may occur.For example, a qualified user can be provided with more detailed and deep information while a novice can receive additional explanations.This area of research is newer than adaptive presentation, a number of interesting techniques have been already suggested and implemented.However, there is a strong need for high-level approaches, formalisms and tools that support and facilitate the description of reusable adaptive hypermedia and websites.Moreover, recently have we noticed a shift in interest, as it became clearer that the implementation-oriented approach would forever keep adaptive hypermedia away from the 'layman' author.This type of division of work determines the different authoring personas that should be expected to collaborate in the creation process of adaptive hypermedia.Research teams commenced projects in adaptive hypermedia, and many students selected the subject area for their PhD theses.Early papers provided few references to similar work in adaptive hypermedia, and described original laboratory systems developed to demonstrate and explore innovative ideas.[1] Adaptive hypermedia and user modeling continue to be actively researched, with results published in several journals and conferences such as: