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kinds of virtual learning environments. The
approach and tool is based on experience obtained
from our work done in the GRAPPLE project.
The approach is based on a number of principles
that have been discussed in the paper. We have
mentioned the different components of a 3D virtual
learning environment and discussed how they can be
adapted for satisfying the needs of a learner. We
have motivated the need for a pedagogical
component in the authoring process, as well as the
need for a storyline-based authoring approach. The
first requirement is achieved by enabling authors to
define pedagogical relationships between the
different learning concepts. To satisfy the second
requirement, they are able to define a storyline
inside the 3D VLE using a 2-layer approach.
Adaptation rules can be associated with both layers,
in each layer focussing on a different level of
adaptation.
We are currently working on developing a
prototype for the authoring tool. Furthermore, an
empirical evaluation will be considered to validate
the usability aspects of the authoring tool.
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