@article{ubo:32816,
  author = {Nacke, Lennart and Stellmach, Sophie and Sasse, Dennis and Niesenhaus, Jörg and Dachselt, Raimund},
  title = {LAIF: A Logging and Interaction Framework for Gaze-Based Interfaces in Virtual Entertainment Environments},
  journal = {Entertainment Computing},
  year = {2011},
  volume = {2},
  number = {4},
  pages = {265–273},
  abstract = {Eye tracking is starting to be used for evaluation and interaction in virtual environments. Especially digital games can benefit from an integrated approach, using eye tracking technology for analysis and interaction. One benefit is faster development of gaze interaction games, which can be automatically evaluated in iterative development cycles. For this purpose, we present a framework of programming libraries that enables rapid game development and gameplay analysis within an experimental research environment. The framework presented here is extensible for different kinds of logging (e.g., psychophysiological and in-game behavioral data) and facilitates studies using eye-tracking technology in digital entertainment environments. An experimental study using gaze-only interaction in a digital game is presented and highlights the framework’s capacity to create games and evaluate novel entertainment interfaces. \textcopyright 2010 International Federation for Information Processing.},
  url = {http://www.sciencedirect.com/science/article/pii/S1875952110000091}
}


@inproceedings{ubo:26371,
  author = {Nacke, E. Lennart and Schild, Jonas and Niesenhaus, Jörg},
  editor = {Calvi, Licia and Gualeni, Stefano and Nuijten, Koos and Nacke, E. Lennart and Poels, Karolien},
  chapter = {},
  title = {Gameplay experience testing with playability and usability surveys – An experimental pilot study},
  year = {2010},
  publisher = {NHTV Expertise Series},
  address = {Breda},
  url = {http://www.acagamic.com/uploads/2007/09/Playability-submission.final_.submission.pdf},
  abstract = {This pilot study investigates an experimental methodology for gathering data to create correlations between experiential factors measured by a gameplay experience questionnaire and player quality measures, such as playing frequency, choice of game, and playing time. The characteristics of two distinct games were examined concerning the aspects of game experience, subjective game quality, and game usability. Interactions within the three aspects were identified. The results suggest that gameplay experience dimensions flow and immersion are similarly motivating in different game genres, which however might not be equally enjoyable. On the one hand, usability ratings may be positively influenced when a game provides immersion and flow or on the other hand, flow and immersion may be negatively influenced by poor usability ratings. These results emphasize the need for an approach to classify games based on correlation patterns involving game experience, quality, and usability.},
  booktitle = {Playability and player experience: Proceedings of the Fun and Games 2010 Workshop}
}


@inproceedings{ubo:26427,
  author = {Nacke, E. Lennart and Niesenhaus, Jörg and Engl, Stephan and Canossa, Alessandro and Kuikkaniemi, Kai and Immich, Thomas},
  editor = {Niesenhaus, Jörg and Rauterberg, Matthias and Masuch, Maic},
  chapter = {},
  title = {Bringing Digital Games to User Research and User Experience},
  year = {2010},
  edition = {Vol-634},
  publisher = {CEUR Workshop Proceedings},
  abstract = {In recent years, the gaming industry has grown up and digital games have become more complex products. With this maturity comes an increasing need for formal playtesting methods from user research and scientific methods from academia. Employing user research methods in game development, especially combined qualitative (e.g., questionnaires, interviews) and quantitative (e.g., EEG, EMG, game metrics) methods lead to a better understanding of the relationship and interactions between players and games. This panel gathers game user research industry and academic experts for discussing current methodological advancements and future challenges in playtesting, usability, playability evaluation, and general game user research.},
  url = {http://ceur-ws.org/Vol-634},
  booktitle = {Proceedings of the Entertainment Interfaces Track 2010 at Interaktive Kulturen 2010}
}


@inproceedings{ubo:22403,
  author = {Niesenhaus, Jörg and Bode, Stephan},
  editor = {Fähnrich, Klaus-Peter and Schumacher, Frank},
  chapter = {},
  title = {Messung der Nutzungseffizienz bei Game-Interfaces unter Berücksichtigung von Blickbewegungen},
  year = {2009},
  publisher = {Leipziger Beiträge zur Informatik},
  address = {Leipzig},
  abstract = {Das Ziel der im Usability-Labor des Lehrstuhls durchgeführten Untersuchung war die Prüfung unterschiedlicher Interface-Versionen einer Spieleserie auf ihre Nutzungseffizienz unter Berücksichtigung von Blickbewegungen. Als Stimuli wurden zwei unterschiedliche Spiele aus der Echtzeitstrategiespielserie ?Dune“ ausgewählt. Im Vordergrund der Untersuchung stand vor allem die Frage nach der Rolle der Gestaltung eines Interfaces im Prozess der Aufgabenlösung und welchen Einfluss sie auf die Leichtigkeit, Schnelligkeit und Effizienz der Lösung der Aufgaben hat.},
  isbn = {978-3-941608-00-9},
  booktitle = {Digitale Spiele in Forschung und Lehre - Beiträge zum Games Summer Camp 2008}
}


@inproceedings{ubo:24670,
  author = {Nacke, E. Lennart and Drachen, Anders and Kuikkaniemi, Kai and Niesenhaus, Jörg and Korhohnen, J. Hannu and Hoogen, den Wouter van and Ijsselsteijn, Wijnand and Kort, de Yvonne},
  editor = {DiGRA},
  chapter = {},
  title = {Playability and Player Experience Research},
  year = {2009},
  address = {London, UK},
  abstract = {As the game industry matures and games become more and more complex, there is an increasing need to develop scientific methodologies for analyzing and measuring player experience, in order to develop a better understanding of the relationship and interactions between players and games. This panel gathers distinguished European playability and user experience experts to discuss current findings and methodological advancements within player experience and playability research.},
  url = {http://www.bth.se/fou/forskinfo.nsf/17e96a0dab8ab6a1c1257457004d59ab/e0a8cdd8cfc0c7e6c125762c005557c0/$file/Nacke-etal-Panel%20Playability%20and%20Player%20Experience.pdf},
  booktitle = {Proceedings of DiGRA 2009: Breaking New Ground: Innovation in Games, Play, Practice and Theory.}
}