Abstract
The take-up of Adaptive Educational Hypermedia (AEH) by the educators has been slow, in part due to the complexity of authoring and the often short `lifetime' of the AEH software. AEH system interoperability can address these problems. This paper reports on a web services architecture for AEH interoperability that builds upon prior translation-based conversion processes between AEH systems. We describe a case study in the development of a web service using Web Services Description Language (WSDL) and SOAP that is capable of converting My Online Teacher (MOT) materials to Web-based, Hierarchical, Universal, Reactive Learning Environment (WHURLE). This web service is flexible and easily extensible, and represents the first step in developing an interoperable middleware for AEH conversions.