about

Welcome! I am a passionate Human-Computer Interaction and User Experience expert. I hold a Master's degree in Computer Science and a Doctor of Engineering, which I received for my research on wrist-worn wearable technology, i.e., Smart Digital Jewellery. This page provides access to the research publications I published while being a student and a research assistant at the University of Oldenburg in Germany.

My research focussed on the design of and interaction with ubiquitous user interfaces. In particular, I explored wearable ambient displays, light displays, and persuasive user interfaces. I applied my research to the domains of health promotion, well-being and everyday activities. In my doctoral thesis, I investigated in how far functional technology can be integrated into fashionable jewellery. Discreetly integrated into everyday life, this Smart Digital Jewellery offers the potential to increase long-term acceptance of wearables.

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doctoral thesis abstract

In recent years wearable devices have become an emerging trend in the consumer market. However, recent studies in the U.S. show that a third of owners of a wearable device abandon its use within six months. Supposed reasons are, among others, a lack in useful functions, aesthetics, and comfort. Smart Digital Jewellery (SDJ) has been proposed as an approach that could overcome the problem of abandonment and increase long-term acceptance of wearable devices by joining functionality with a decorative appearance. The term describes decorative objects worn on the body, that appear as jewellery and at the same time offer useful, computerised functions. Researchers have proposed a number of concepts for different types of SDJ, but thorough investigations are missing. Specific design guidelines are needed that tell developers how to design broadly accepted wearable technology in the form of SDJ.
In this dissertation we investigated how wrist-worn SDJ should be designed in order to be everyday suitable and meet the users’ needs. After having explored the scope of SDJ, we investigated how wrist-worn SDJ should look like, how information could be presented, and how a user could interact with SDJ. We investigated single-purpose as well as multi-purpose SDJ. The investigations were carried out by means of concrete SDJ systems, which we designed, built and evaluated in the lab and in real-life situations. Several scenarios illustrate the application of concepts regarding the form of, as well as information presentation and interaction with wrist-worn SDJ to the domains of health promotion, everyday tools, and non-verbal communication. The contributions of this work are (1) the artefacts that were created during the research process as means of physical representations of the investigated concepts, (2) detailed insights into the human-centred design and evaluation of wrist-worn SDJ for several use cases, (3) concrete recommendations on how to design wrist-worn SDJ, i.e., according to appearance, information presentation, and interaction, and (4) the reflection on the applicability of a variety of human-centred prototyping and evaluation methods for researching SDJ. The insights into the design and evaluation of wrist-worn SDJ and the design recommendations provide a good step in pointing us towards designing acceptable wearables. They enable developers of wrist-worn technology to create appealing and comfortable devices that integrate well into everyday life. The reflection on the methods used helps researchers to choose appropriate methods for their studies, and identifies potential areas for future work.

publications

2017

Wrist-Worn Light-Based Smart Digital Jewellery
Jutta Fortmann
Doctoral Thesis, OlWIR, 2017. ISBN-13 978-3-95599-042-8.

2016

Link to Youtube Video Tangible Apps Bracelet: Designing Modular Wrist-Worn Digital Jewellery for Multiple Purposes
Jutta Fortmann, Erika Root, Wilko Heuten, and Susanne Boll
Proceedings of the 2016 Conference on Designing Interactive Systems, DIS '16, ACM.

2015

Towards New Ambient Light Systems: A Close Look at Existing Encodings of Ambient Light Systems
Andrii Matviienko, Maria Rauschenberger, Vanessa Cobus, Janko Timmermann, Jutta Fortmann, Andreas Löcken, Heiko Müller, Christoph Trappe, Wilko Heuten, and Susanne Boll
IxD&A Journal Special issue on: Designing for Peripheral Interaction: seamlessly integrating interactive technology in everyday life, n. 26, pp. 10-24, 2015.

Deriving design guidelines for ambient light systems
Andrii Matviienko, Maria Rauschenberger, Vanessa Cobus, Janko Timmermann, Heiko Müller, Andreas Löcken, Jutta Fortmann, Christoph Trappe, Wilko Heuten, and Susanne Boll
Proceedings of the 14th International Conference on Mobile and Ubiquitous Multimedia, MUM ’15, ACM.

Lightwatch: A wearable light display for personal exertion
Jutta Fortmann, Janko Timmermann, Bengt Lüers, Marius Wybrands, Wilko Heuten, and Susanne Boll
Human-Computer Interaction, INTERACT 2015, volume 9299 of Lecture Notes in Computer Science, pages 582–585. Springer International Publishing, 2015.

Lumicons: Mapping light patterns to information classes
Maria Rauschenberger, Andrii Matviienko, Janko Timmermann, Vanessa Cobus, Heiko Müller, Andreas Löcken, Jutta Fortmann, Christoph Trappe, Wilko Heuten, and Susanne Boll
Proceedings of Mensch und Computer 2015, pages 343–346, Berlin, 2015. De Gruyter Oldenbourg.

User requirements for digital jewellery
Jutta Fortmann, Wilko Heuten, and Susanne Boll
Proceedings of the 2015 British HCI Conference, British HCI ’15, pages 119–125. ACM.

Real-life experiences with an adaptive light bracelet
Jutta Fortmann, Benjamin Poppinga, Wilko Heuten, and Susanne Boll
Proceedings of the 2015 British HCI Conference, British HCI ’15, pages 138–146. ACM.

Demo hour
Jutta Fortmann, Heiko Müller, Wilko Heuten, Susanne Boll, Jari Kangas, Deepak Akkil, Jussi Rantala, Poika Isokoski, Päivi Majaranta, Roope Raisamo, Pavel A. Orlov, Roman Bednarik, Héctor A. Caltenco, Henrik Svarrer Larsen, and Per-Olof Hedvall
ACM Interactions, 22(1):6–9, January 2015.

Making lifelogging usable: Design guidelines for activity trackers
Jochen Meyer, Jutta Fortmann, Merlin Wasmann, and Wilko Heuten
Proceedings of MultiMedia Modeling, volume 8936 of Lecture Notes in Computer Science, pages 323–334. Springer International Publishing, 2015.

2014

Link to Youtube Video Waterjewel: Design and evaluation of a bracelet to promote a better drinking behaviour
Jutta Fortmann, Vanessa Cobus, Wilko Heuten, and Susanne Boll
Proceedings of the 13th International Conference on Mobile and Ubiquitous Multimedia, MUM ’14, pages 58–67. ACM.

How to present physical activity feedback on a point light bracelet
Jutta Fortmann, Heiko Müller, Wilko Heuten, and Susanne Boll
Proceedings of Experiencing Light 2014: International conference on the effects of light on wellbeing.

Timelight - using light to keep track of time dedicated to children
Heiko Müller, Jutta Fortmann, Wilko Heuten, and Susanne Boll
Proceedings of Experiencing Light 2014: International conference on the effects of light on wellbeing.

How to present information on wrist-worn point-light displays
Jutta Fortmann, Heiko Müller, Wilko Heuten, and Susanne Boll
Proceedings of the 8th Nordic Conference on Human-Computer Interaction, NordiCHI ’14, pages 955–958. ACM.

IllumiMug: Revealing imperceptible characteristics of drinks
Benjamin Poppinga, Jutta Fortmann, Heiko Müller, Wilko Heuten, and Susanne Boll
Proceedings of the 8th Nordic Conference on Human-Computer Interaction, NordiCHI ’14, pages 923–926. ACM.

Exploring form factors of ambient light displays for event reminders
Heiko Müller, Jutta Fortmann, Andreas Löcken, Wilko Heuten, and Susanne Boll
Workshop “Beyond the Switch: Explicit and Implicit Interaction with Light” at NordiCHI ’14. ACM.

Laser cutter and needlework: Tinkering projects in class
Susanne Boll, Heiko Müller, Torben Wallbaum, Shadan Sadeghianborojeni, Andreas Löcken, Christoph Trappe, Wilko Heuten, Jutta Fortmann
Workshop “Teaching to Tinker - Making as an Educational Strategy” at NordiCHI ’14.

Interaktive Systeme für die persönliche Gesundheit
Susanne Boll, Wilko Heuten, Benjamin Poppinga, Heiko Müller, Jutta Fortmann, Janko Timmermann, Jochen Meyer
Informatik-Spektrum, 37(5):428–434, 2014.

Designing Wearable Light Displays for Users and Observers
Jutta Fortmann, Heiko Müller, Wilko Heuten, Susanne Boll
Workshop on Peripheral Interaction: Shaping the Research and Design Space at CHI 2014.

Illuminated Ring - A Wearable Display to Support Fluid Intake
Bengt Lüers, Thomas Crone, Veronika Strokova, Jutta Fortmann, Wilko Heuten, Susanne Boll
Mensch & Computer 2014 - Tagungsband, pages 339–342, Berlin, 2014. De Gruyter Oldenbourg.

WaterJewel: Be Aware of Your Daily Servings of Water With an LED-illuminated Bracelet
Jutta Fortmann, Vanessa Cobus, Wilko Heuten, Susanne Boll
8th International Conference on Pervasive Computing Technologies for Healthcare, PervasiveHealth '14, ICST.

2013

Proximity sensor: Privacy-aware location sharing
Heiko Müller, Jutta Fortmann, Janko Timmermann, Wilko Heuten, Susanne Boll
Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services, MobileHCI '13

Illumee: Aesthetic light bracelet as a wearable information display for everyday life
Jutta Fortmann, Heiko Müller, Wilko Heuten, Susanne Boll
Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication, UbiComp '13, Adjunct, pages 393–396. ACM.

Make Me Move at Work! An Ambient Light Display to Increase Physical Activity
Jutta Fortmann, Tim Claudius Stratmann, Benjamin Poppinga, Susanne Boll, Wilko Heuten
Proceedings of the 7th International Conference on Pervasive Computing Technologies for Healthcare, PervasiveHealth '13 pages 274–277, ICST.

2012

AmbiGlasses - Information in the Periphery of the Visual Field
Benjamin Poppinga, Niels Henze, Jutta Fortmann, Wilko Heuten, Susanne Boll
Proceedings of Mensch & Computer 2012, pages 153–162, Oldenbourg Verlag.

PaceGuard: Improving Running Cadence by Real-time Auditory Feedback
Jutta Fortmann, Martin Pielot, Martin Büscher, Marco Mittelsdorf, Stefan Trienen, Susanne Boll
Proceedings of the 14th international conference on Human-computer interaction with mobile devices and services companion, MobileHCI '12, pages 5–10. ACM.

AmbiX: Designing Ambient Light Information Displays
Heiko Müller, Jutta Fortmann, Martin Pielot, Tobias Hesselmann, Benjamin Poppinga, Wilko Heuten, Niels Henze and Susanne Boll
Workshop on Designing Interactive Lighting at Designing Interactive Systems Conference, DIS '12.

2010

Zeitanalyse als Aspekt der Usability-Bewertung im Kontext komplexer Aufgaben
Jutta Fortmann
Master Thesis (Diplomarbeit), University of Oldenburg, 2010.

2008

Bewertung der Usability eines Fahrkartenautomaten mit Hilfe von Engineering-Techniken zur Quantifizierung von Benutzungsoberflächen
Jutta Fortmann
Bachelor Thesis, University of Oldenburg, 2008.