Koen Hendrikx

Managing digital educational resources with the ARIADNE metadata system

SUMMARY The primary goal of the ARIADNE project, supported by the European Commission, is to foster share and reuse of digital pedagogical material. For this purpose, a Europe-wide repository of reusable pedagogical documents, called the Knowledge Pool System (KPS), has been set up. One of the key features of the KPS is the underlying metadata specification, which has been used in extensive experiments. The ARIADNE metadata scheme includes both mandatory and optional elements, and is at the basis of the emerging Learning Objects Metadata standard, developed by the IEEE Learning Technology Standards Committee. This article presents the ARIADNE metadata scheme and discusses ARIADNE tools developed to support metadata authoring and indexing, database querying, and course development activities. A discussion of the ARIADNE communitys experience is also presented.

Hypermedia for open and flexible learning

Although there are many systems available for the creation and maintenance of course material for open and flexible learning, this task remains tedious and inefficient. In this paper we present a data model and a design paradigm for hypermedia courseware. We demonstrate an implementation of the model which makes use of the World Wide Web, and will be used to provide selfstudy courses to students of the university of Leuven.

Structured Hypermedia Authoring: A Simple Tool for the Design and Implementation of Structured Hypermedia Databases

In this paper a new hypermedia model is presented that avoids a number of traditional problems of hypermedia authoring, and facilitates the maintenance of links and the re-use of information resources. The model was inspired by problems we experienced while implementing a hypermedia self study course on computer science [Olivie 1993].

Generative Development of Object-Oriented Frameworks

Developing domain-specific object-oriented frameworks is difficult. It requires a deep understanding of both the application domain and the mechanisms and principles of object orientation. This article claims that by adopting some techniques of generative programming, framework development can be made into a more repeatable process, rather than the art it currently is.

Object-oriented hypertext design: authoring for reuse

We present a new approach for the development of hypertext information systems that avoids a number of traditional hypermedia authoring problems, and facilitates the maintenance of links and the reuse of information resources. The model is set-based, and integrates features from object-oriented software design models. This helps authors to make a comprehensive (and comprehensible) design before starting an implementation. We also briefly describe an authoring system that implements this model, and which uses an existing relational database system to store documents, links and meta-information.