Integrated User Model in an Adaptive Virtual Learning Environment

Abstract

Abstract: This paper presents an integrated user model which supports the development of an adaptive virtual learning environment. This integrated user model is made up of three dimensions – user characteristics, interactions and context – which allow us to address three issues in adaptive systems. User characteristics are used to support adaptive presentation, the interactions are used to support adaptive activities, and the context is used for device adaptation. In order to attain this level of personalization, a prototype which explores the first dimension has been developed. This prototype uses a multi-agent system to make an existing learning management system (dotLRN) adaptive. E-learning specifications and standards – IMS-LD, IMS-QTI, IMS-RDCEO and IEEE/LOM – have been used to deal with the interoperability issue. The adaptation is based on an overlay model that builds a student model to determine the competence level of the student. This student model is used to provide students with the most appropriate activities and resources in a unit of learning design with IMS-LD. 1