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Terms of Use



© 2009 Deutsche Telekom Laboratories & Technical University Berlin

Open Source Software

Joy-of-Use-Button is open source software.

For more details see:

Joy-of-Use-Button Source Code:
SourceCode.zip (ZIP, 750,0 KB)

License & Disclaimer

Joy-of-Use-Button is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.

For more details see:

How to Quote

For any quotations concerning the Joy-of-Use-Button, please use this reference:
R. Schleicher, S. Trösterer, J. Rhede, C. Avsar, T. Bedenk, C. Bose, A. Ehrich, R. Havemann, A. Jeremias, R. Lippoldt, A. Meyer. (2009). Joy of Use in Practice. [Online]. Technical University Berlin, Department of Software Engineering and Theoretical Computer Science, Quality and Usability Lab. Available at: <http://www.tu-berlin.de/?id=53724> [Accessed: date].

Zusatzinformationen / Extras


Schnellnavigation zur Seite über Nummerneingabe

For any questions or to send your Joy-of-Use-Button data sets, please send an e-mail to: