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The design of AHA!

Published: 22 August 2006 Publication History

Abstract

"The Design of AHA!" is an adaptive hypertext, and thus not presented in its entirety in this short paper. Because it is not only a hypertext but also adaptive it cannot simply be presented using a linear paper or a set of HTML pages.This paper describes the design of, and demonstrates AHA! (Version 3.0), an Open Source adaptive hypermedia platform, capable of performing content and link adaptation in (x)html and xml documents. Its development started in 1996. During 10 years of research and development different new presentation, adaptation and user modeling methods and techniques have been added, turning AHA! into a general-purpose adaptive hypermedia platform. This paper presents an overview of the design and architecture of AHA!, with parts that have been published before and with recent additions like style adaptation and a new very flexible link annotation mechanism.Unlike other adaptive hypermedia systems, AHA! is not aimed at a single application area and does not prescribe a single fixed presentation style. Creating applications, defining the user models and the adaptive behavior are all done using graphical authoring tools. End-users are presented with what looks like a normal website, and need not be aware of the adaptation that goes on behind the scenes. Their browsing results in updates to a user model that is stored either in an xml file or a mySQL database, and that is thus also (in principle) available to other applications. Apart from providing a design overview this paper highlights two essential parts of AHA!: the reasoning / rule engine that translates the end-user's actions into user model updates, and the adaptive resource selection, which is used in the conditional inclusion of objects presentation technique and in the conditional link destinations navigation support technique.This paper is itself an adaptive hyperdocument. The order in which the different topics are visited determines the links that are presented and the contents of each (web)page. No matter how you browse through this paper you should end up with a very similar overall impression, and you should have seen all the information the paper contains. However, the actual contents of the pages and the actual link destinations do depend on your browsing order, so different users will not see exactly the same pages and links.

Reference

[1]
De Bra P. et al. The AHA! Project Website, available at http://aha.win.tue.nl/.

Cited By

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  • (2018)Spatial reasoning about multimedia document for a profile based adaptationMultimedia Tools and Applications10.5555/3288443.328850377:23(30437-30474)Online publication date: 1-Dec-2018
  • (2018)An Intuitive Authoring System for a Personalised, Social, Gamified, Visualisation-supporting e-learning SystemProceedings of the 3rd International Conference on Information and Education Innovations10.1145/3234825.3234835(57-61)Online publication date: 30-Jun-2018
  • (2018)A Large-Scale Category-Based Evaluation of A Visual Language for Adaptive HypermediaProceedings of the 3rd International Conference on Information and Education Innovations10.1145/3234825.3234834(94-98)Online publication date: 30-Jun-2018
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Published In

cover image ACM Conferences
HYPERTEXT '06: Proceedings of the seventeenth conference on Hypertext and hypermedia
August 2006
178 pages
ISBN:1595934170
DOI:10.1145/1149941
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 22 August 2006

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Author Tags

  1. adaptation platform
  2. adaptive hypermedia
  3. authoring

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HT06
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HT06: 17th Conference on Hypertext and Hypermedia
August 22 - 25, 2006
Odense, Denmark

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Overall Acceptance Rate 378 of 1,158 submissions, 33%

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Cited By

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  • (2018)Spatial reasoning about multimedia document for a profile based adaptationMultimedia Tools and Applications10.5555/3288443.328850377:23(30437-30474)Online publication date: 1-Dec-2018
  • (2018)An Intuitive Authoring System for a Personalised, Social, Gamified, Visualisation-supporting e-learning SystemProceedings of the 3rd International Conference on Information and Education Innovations10.1145/3234825.3234835(57-61)Online publication date: 30-Jun-2018
  • (2018)A Large-Scale Category-Based Evaluation of A Visual Language for Adaptive HypermediaProceedings of the 3rd International Conference on Information and Education Innovations10.1145/3234825.3234834(94-98)Online publication date: 30-Jun-2018
  • (2018)The StoryPlaces PlatformProceedings of the 29th on Hypertext and Social Media10.1145/3209542.3209559(128-135)Online publication date: 3-Jul-2018
  • (2018)Spatial reasoning about multimedia document for a profile based adaptationMultimedia Tools and Applications10.1007/s11042-018-6080-877:23(30437-30474)Online publication date: 25-May-2018
  • (2017)Converting Graphic Relationships into Conditional Probabilities in Bayesian NetworkBayesian Inference10.5772/intechopen.70057Online publication date: 2-Nov-2017
  • (2016)ALATProceedings of the 27th ACM Conference on Hypertext and Social Media10.1145/2914586.2914627(213-218)Online publication date: 10-Jul-2016
  • (2015)ELM-ART – An Interactive and Intelligent Web-Based Electronic TextbookInternational Journal of Artificial Intelligence in Education10.1007/s40593-015-0066-826:1(72-81)Online publication date: 24-Sep-2015
  • (2014)Supporting Self-Regulated LearningResponsive Open Learning Environments10.1007/978-3-319-02399-1_2(17-48)Online publication date: 5-Nov-2014
  • (2014)eLearning standards and automatic assessment in a distributed eclipse based environment for learning computer programmingComputer Applications in Engineering Education10.1002/cae.2156922:4(774-787)Online publication date: 1-Dec-2014
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