• Preview: APNPermissionRequest APNPermissionRequest Customized push notification permission requests
  • Preview: Klügste Nacht-App Klügste Nacht-App The Klügste Nacht-App is the official app for the Long Night of the Sciences in Berlin.
  • Preview: amphiro App amphiro App Apple iOS app for the smart meter amphiro a1
  • Preview: QUe QUe QUe is an open source conference application for smartphones.
  • Preview: MoCCha MoCCha MoCCha is a mobile campus application that is used as a research platform.
  • Preview: Call My Attention Call My Attention Call My Attention is an application for immediate Line-of-Sight Signaling on Mobile Phones. The application proposes a mobile device function to be used like a remote control, for achieving immediate attention.
  • Preview: CapWidgets CapWidgets CapWidgets bring back physical controls to off-the-shelf multi-touch surfaces as found in mobile phones and tablet computers. While the user touches the widget, the surface detects the capacitive marker on the widget's underside. CapWidgets can be used with most mobile devices equipped with capacitive touch screens, e.g. Apples iPad, iPhone or similar devices.
  • Preview: I'm Home I'm Home How will we control our home appliances in ten years? Will every new device still be shipped with an extra remote control? A coffee table looking like a mess seems the inevitable.


  • Westermann, T. (2017). User Acceptance of Mobile Notifications. (S. Möller, A. Küpper, & A. Raake, Eds.). Springer Singapore.
  • Westermann, T., Wechsung, I. & Möller, S. (2016). Smartphone Notifications in Context: a Case Study on Receptivity by the Example of an Advertising Service. In CHI'16 Extended Abstracts on Human Factors in Computing Systems (CHI EA '16).
  • Westermann, T., Wechsung, I. & Möller, S. (2015). Assessing the relationship between technical affinity, stress and notifications on smartphones. Proceedings of the 17th International Conference on Human-Computer Interaction with Mobile Devices and Services Adjunct.
  • Westermann, T. & Wechsung, I. (2015). Empowering users to make informed permission request choices. Proceedings of the 17th International Conference on Human-Computer Interaction with Mobile Devices and Services Adjunct.
  • Möller, S & Westermann, T.. (2015). Experiences with and New Application Ideas for the Interspeech App. Interspeech 2015 Show & Tell (to appear)
  • Möller, S., Westermann, T. & Hillmann, S. (2015). DAGA-App: Konzeption und Nutzungsdatenanalyse der DAGA 2014. Fortschritte der Akustik – DAGA 2015: Plenarvorträge und Fachbeiträge der 41. Deutschen Jahrestagung für Akustik
  • Möller, S., Westermann, T., Beyer, J., & Reichmuth, R. (2014). Exploring User Behavior and Preferences in the Wild with Mobile Apps: Lessons Learned from Four Case Studies (pp. 532–538). Presented at the Tenth International Conference on Signal-Image Technology and Internet-Based Systems (SITIS), 2014. doi:10.1109/SITIS.2014.74
  • Westermann, T. (2014). Different Settings, Different Issues, Same Research Questions?. Is There a European Strand of Sustainable HCI? Workshop at NordiCHI 2014
  • Seebode, J., Greiner, S., Westermann, T., Wechsung, I., & Möller, S. (2014). Sustainable mobility: how to overcome mobility behavior routines. the 8th Nordic Conference (pp. 1003–1006). New York, New York, USA: ACM. doi:10.1145/2639189.2670261
  • Westermann, T., & Möller, S. (2014). DAGA-App - Konferenz-App und Werkzeug für die Akustik (pp. 754–755). Presented at the Fortschritte der Akustik - DAGA 2014.
  • Schleicher, R., Westermann, T., & Reichmuth, R. (2014). Mobile Human–Computer Interaction. In S. Möller & A. Raake, Quality of Experience (pp. 339–349). Cham: Springer International Publishing. doi:10.1007/978-3-319-02681-7_23
  • Schleicher, R., Westermann, T., Weiss, B., Wechsung, I., & Möller, S. (2014). Research on Mobile HCI: Taken Out of Context?. In K. Rızvanoğlu, & G. Çetin (Eds.) Research and Design Innovations for Mobile User Experience (pp. 76-93). Hershey, PA: Information Science Reference. doi:10.4018/978-1-4666-4446-5.ch004
  • Schleicher, R., Westermann, T., Li, J., Lawitschka, M., Mateev, B., Reichmuth, R., & Möller, S. (2013). Design of a mobile app for interspeech conferences: towards an open tool for the spoken language community. (pp. 775–777). Presented at the INTERSPEECH.
  • Schleicher, R., Westermann, T., & Möller, S. (2013). High- vs. Low-quality Video Lectures - Don't Worry, Just Put them Online!. (pp. 204–209). Presented at the CSEDU.
  • Westermann, T. (2012). On the trail of ecological validity: Using a mobile campus application for analyzing user behavior in the field. Presented at the Research in the Large: App Stores, Wide Distribution, and Big Data. Workshop at MobileHCI 2012, San Francisco, CA, USA.
  • Westermann, T., & Möller, S. (2012). MoCCha: a mobile campus app for analyzing user behavior in the field (pp. 799–800). Presented at the NordiCHI '12: Proceedings of the 7th Nordic Conference on Human-Computer Interaction: Making Sense Through Design, New York, New York, USA:  ACM. doi:10.1145/2399016.2399154
  • Kühnel, C., Westermann, T., Hemmert, F., Kratz, S., Müller, A., & Möller, S. (2011). I'm Home: Defining and Evaluating a Gesture Set for Smart-Home Control. International Journal of Human-Computer Studies.
  • Westermann, T. (2011). Bring 'em Home: Smartphone-based Gestural Interaction with Smart-Home Systems. Presented at the Body, Movement, Gestures & Tactility in Interaction with Mobile Devices. Workshop at MobileHCI 2011.
  • Kratz, S., Westermann, T., Rohs, M., & Essl, G. (2011). CapWidgets: Tangile Widgets Versus Multi-touch Controls on Mobile Devices (pp. 1351–1356). Presented at the CHI '11 Extended Abstracts on Human Factors in Computing Systems, New York, NY, USA: ACM. doi:10.1145/1979742.1979773
  • Kühnel, C., Westermann, T., Weiss, B., & Möller, S. (2010). Evaluating multimodal systems: a comparison of established questionnaires and interaction parameters (pp. 286–294). Presented at the NordiCHI '10: Proceedings of the 6th Nordic Conference on Human-Computer Interaction: Extending Boundaries, New York, New York, USA:  ACM Request Permissions. doi:10.1145/1868914.1868949
  • Westermann, T. (2010). I'm Home: Smartphone-enabled Gestural Interaction with Multi-Modal Smart-Home Systems (pp. 137–140). Presented at the Informatiktage'10, GI.

Supervised Theses & Study Projects

  • Understanding user acceptance of mobile push notifications by the example of a German location-based service, Sean Keith, Bachelor's thesis, 2015
  • Design, Development and Evaluation of a back-end for a mobility app using a gamification approach, Jacob Kreyenbühl, Master's thesis, 2015
  • Design, Development and Evaluation of a Frontend for a Mobility App using a Gamification Approach, Michal Stawski, Master's thesis, 2015
  • Design and Implementation of a mobile conference application for the iOS platform, Benjamin Mateev, Master's thesis, 2014
  • Design and implementation of an API for a conference app, Moritz Lawitschka, Master's thesis, 2014
  • Konzeption und Entwicklung einer mobilen Konferenz-App für die Android-Plattform, Jinjin Li, Master's thesis, 2014
  • REST-konformes Re-Design eines bestehenden Webservices, Christopher Zell, Bachelor's thesis, 2013
  • Development of a job board for MoCCha, Study Project Quality and Usability, Winter 2012/13
  • Queering the Interface, Study Project Quality and Usability, Summer 2012
  • Development and Evaluation of a Mobile Application for "Lange Nacht der Wissenschaften", Justus Beyer, Diploma thesis, 2012
  • Development of a course catalog-App, Study Project Quality and Usability, Winter 2011/12


Talks & Exhibitions