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on-l<strong>in</strong>e, an audio and/or video connection can be established between the tutor and the student. The tutor also<br />

types <strong>in</strong> the answer <strong>in</strong> another w<strong>in</strong>dow so the question and answer pair can automatically be <strong>in</strong>serted <strong>in</strong>to the<br />

database.<br />

In order to enhance <strong>in</strong>teraction between course participants (<strong>in</strong>clud<strong>in</strong>g tutors and lecturers), a record can be<br />

kept up-to-date where personal data is stored along with a record of past <strong>in</strong>teractions so that it is possible to<br />

consult others who are work<strong>in</strong>g on a similar problem or who are possibly able to answer a question on a<br />

specific topic. However, <strong>in</strong><strong>format</strong>ion about personal achievements should only be made available upon<br />

agreement of the contacted participant. Contact between users could be established via e-mail or other<br />

communication facilities. An advanced sett<strong>in</strong>g would be the <strong>in</strong>tegration of CSCW tools to enable users to<br />

jo<strong>in</strong>tly work on a specific task.<br />

4 Conclusion<br />

In order to build an educational environment which is truly beneficial to the participants, extend<strong>in</strong>g traditional<br />

techniques <strong>in</strong> education by the use of computer technology, it is important to ga<strong>in</strong> <strong>in</strong><strong>format</strong>ion about the<br />

acceptance of such a system. Our first experience clearly shows that it depends on its user-friendl<strong>in</strong>ess, the<br />

<strong>in</strong>teraction facilities and its technical performance. An <strong>in</strong>terdiscipl<strong>in</strong>ary approach <strong>in</strong>volv<strong>in</strong>g cognitive and<br />

educational scientists is certa<strong>in</strong>ly beneficial to f<strong>in</strong>d out about the possible enhancements, along with feedback<br />

and suggestions from course participants. Although we currently focus on the field of algorithms and data<br />

structures, we believe that hypermedia educational systems can be beneficial for a large number of sciences.<br />

Thus, our aim is to develop an open, extendable system which can easily be adapted for the use <strong>in</strong> other<br />

discipl<strong>in</strong>es, tailored to the needs of both lecturers and students.<br />

References<br />

AOS91<br />

F. Augenste<strong>in</strong>, Th. Ottmann, J. Schön<strong>in</strong>g: E<strong>in</strong> typ- und regelgesteuertes Autorensystem. In: H. Maurer<br />

(ed.): Hypertext/Hypermedia '91, pp. 25-33, In<strong>format</strong>ik-Fachbericht Nr. 276, Graz, Austria, 1991.<br />

DH95<br />

Wolfgang Dalitz, Gernot Heyer: Hyper-G. Das Internet-In<strong>format</strong>ionssystem der 2. Generation. dpunkt-<br />

Verlag, Heidelberg, 1995<br />

Ma96<br />

H. Maurer: Hyper-G now Hyperwave. The next generation web solution. Addisson-Wesley Publish<strong>in</strong>g<br />

Company, Harlow, England, 1996<br />

OBa95<br />

Th. Ottmann, Chr. Bacher: Author<strong>in</strong>g on the Fly. Technical Report, Universität Freiburg, October 1995<br />

BaO96<br />

Chr. Bacher, Th. Ottmann: Tools and Services for Author<strong>in</strong>g on the Fly, ED<br />

MEDIA '96, Boston, June 1996<br />

Ott95<br />

Th. Ottmann: Hochschullehrer als Autoren und Nutzer von Lernsoftware, Universität Freiburg, December<br />

1995.<br />

LMa94<br />

J. Lennon, H. Maurer: Lectur<strong>in</strong>g technology, a future with hypermedia. Educational Technology, pp. 5 -<br />

14, April 1994<br />

StHay91<br />

J. T. Stasko, D. Hayes: XTANGO Algorithm Animation Designer's Package, College of Comput<strong>in</strong>g,<br />

Geogia Institute of Technology, Atlanta (1991)

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