AHAM Adaptation Model

• The adaptation model describes how the adaptations should be done
• It is made up of a set of adaptation rules

Adaptation Rules

• These rules form the connections between the User Model, the Domain Model, and the presentation specification
• The rules define the behavior of the system

So What's Under The Hood? The Adaptation Engine (AE)

• It is the software environment for the system
• It does not appear in the AHAM Model diagram, but is still considered an important part of the model
• It describes implementation dependent aspects of the system, while the domain model, user model, and adaptation model describes the information conceptually
• It provides page selectors and constructors
• It performs adaptations (i.e. selecting pages, constructing pages, and altering links based on rules are part of adaptation)
• It makes updates to the user model according to the users actions in the system( this includes storing pages visited, and updating concept attributes
• As a result of differences in the AE, the same domain model, user model, and adaptation rules may not produce the same presentation to the user