Guenter Hilmer - Phd Thesis - Glamorgan Dspace - University of ...

7.4 Summary 7 PRACTICAL EVALUATION
7.4.3 Linking of TLSs
The linking of the TLSs was not a problem during the practical evaluation of
the HEAT. However, depending on the complexity of the educational material
authored the linking structure can become increasingly complex. This complexity
was especially observed during the creation of educational material that has not a
book like structure.
The linking mechanisms implemented in the HEAT worked as foreseen, but the
actual realisation of the implementation did not work ideally. For example, the
problem of indexed linking that was already identified during the interview eval-
uation should be addressed in the future (cf. section 9.2).
7.4.4 EM-Layer
Two major problems with the EM-layer were discovered in the practical evalua-
tion.
Firstly, the HEAT is can not of work with several EMs at the same time. Depend-
ing on the educational material that needs to be converted, rather large EMs must
be created. Furthermore, the bigger an EM gets the more difficult it is to manage
the single TLSs.
Secondly, the possibility of inter-EM-linking is not provided currently by the
HEAT.
However, both problems are a not a design problem of the EFTECS, but an imple-
mentation problem of the HEAT which can be solved in future work (cf. section
9.2).
7.4.5 Presentation of the material
During the practical evaluation of the HEAT it was found that the presentation
of the created and produced material has potential for improvement. Several is-
sues concerning the presentations were found, for example the presentation of the
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