Eliciting User Experience Information in Early Design Phases. The CARE Approach to In-Vehicle UX
Doktorsavhandling, 2018

Experience-rich input in early phases of a design process can offer valuable information and inspiration to designers. However, there are methodological challenges linked with efforts to understand future user experiences. Experience encompasses multi-layered and tacit data, such as emotions and value, that are important for commercial success but are difficult to elicit from users for existing products, and even more so for concepts in early design phases. At early design phases, the inevitably incomplete representations of product and use context influences the outcomes.  It is typically easier to elicit usability-related aspects, meaning that other aspects of experience may be insufficiently addressed. The contribution of this thesis is an approach for eliciting rich user experience (UX) data in early design phases, building on six studies. This thesis employs in-vehicle user experience as a study case, but results are however presented on a methodological level that can also be of use to other interactive products. The overall research questions are: What signifies in-vehicle UX? How can UX data be elicited for input to novel in-vehicle concepts in early design phases?

Firstly, the analysis phase of the design process was addressed, where a multi-method approach was employed to study current in-vehicle UX. UX is an umbrella term that has proven difficult to describe and conceptualise in studies. Therefore, the aim of the first study was to better understand what signifies the specific case of in-vehicle UX. Secondly, how to approach and understand user expectations on future autonomous cars was address in the two following studies, in order to address prospective research of novel systems. A method addressing research on user expectations was developed – Setting the Stage for Autonomous Cars. Thirdly, ideation was addressed in a series of workshops, containing generative and creative efforts for ideating future interactive in-vehicle systems. Methods such as enactment, small-scale scenarios, Wizard of Oz, a lo-fi driving simulator and the developed Setting the Stage for Autonomous Cars method were used. The final studies address concept evaluation, and comparatively explore the effects of choosing different product representations (storyboard and interactive prototype) and study contexts (Virtual Reality and in the field) in early UX evaluation. 

Based on the outcomes of the studies, an approach is proposed – the CARE approach –  for enabling richer and more in-depth UX data in early design phases. This approach suggests that there is a need to Contextualise the researched experience (conveying the intended use situation and sentisising the participants to experience), enabling the participant to Act (enabling interaction even at the stages of very lo-fi concepts), supporting Reflection on the experience (enhanced by generative elements in the methods, such as drawing concepts and enacting use) and enabling the participant to Express the experience (in more ways than by just relying on words). Furthermore, the thesis presents findings regarding what signifies in-vehicle UX, for example whole-body, multi-sensory interactions, the importance of the temporal stage of use, the social and multi-device context, and the changing relationship between user and car with increased automation. The results emphasise the importance of addressing the multisensory use situation in each design phase and for participants to express experiences, not only in words but also through enactment and generative techniques.

UX

user experience

in-vehicle

autonomous vehicles

evaluation

design methods

the Virtual Development Laboratory (VDL), at Chalmers Tvärgata 4 - 6
Opponent: Professor of Practice Virpi Roto, Aalto University, Finland

Författare

Ingrid M Pettersson

Chalmers, Industri- och materialvetenskap

A Bermuda Triangle?: A Review of Method Application and Triangulation in User Experience Evaluation

; Vol. Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems(2018)

Paper i proceeding

Exploring User Experience in the Wild: Facets of the Modern Car

Lecture Notes in Computer Science,; Vol. 9188(2015)p. 450-461

Paper i proceeding

Setting the stage for autonomous cars: A pilot study of future autonomous driving experiences

IET Intelligent Transport Systems,; Vol. 9(2015)p. 694-701

Artikel i vetenskaplig tidskrift

Travelling from Fascination to New Meanings: Understanding User Expectations Through a Case Study of Autonomous Cars

International Journal of Design,; Vol. 11(2017)p. 1-11

Artikel i vetenskaplig tidskrift

Design techniques for exploring automotive interaction in the drive towards automation

DIS 2017 - Proceedings of the 2017 ACM Conference on Designing Interactive Systems,; (2017)p. 147-160

Paper i proceeding

Pettersson, I., Karlsson M., Gkouskos, D. System representations formats and their influence on user experience evaluation

Pettersson, I., Karlsson M., Ghiurau T. F., Carlsson, M., Sonesson, T. Learning from user experience evaluation of in-vehicle systems in VR and in the field

The user experience (UX) of interactive products is vital for commercial success. This means that aspects such as users’ emotions, values and needs must be addressed in design processes. Input from user studies on user experience in the early design phases offers valuable information and inspiration to designers, but there are methodological challenges as experience-focused information is typically difficult to elicit from users. It is even more challenging when designing for positive experiences of novel products that have not existed on the market before, as there are no or few previous designs to learn from. Efforts must then be made to proactively explore experiences, rather than primarily learn from past solutions.

The study case of this thesis is the in-vehicle UX of modern cars, including cars equipped with semi-autonomous driving systems. The aim is to form an understanding of what signifies in-vehicle UX from a user perspective and to explore how UX data can be elicited for input to novel in-vehicle concepts in early design phases. Building on six empirical studies, the results are summarized in a description of in-vehicle UX and an approach for eliciting UX data – the CARE approach.

AUX - Användarupplevelse inom fordonsindustrin

VINNOVA, 2013-01-01 -- 2016-12-31.

Styrkeområden

Transport

Ämneskategorier

Design

Interaktionsteknik

Människa-datorinteraktion (interaktionsdesign)

ISBN

978-91-7597-786-7

Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie: 4467

Utgivare

Chalmers tekniska högskola

the Virtual Development Laboratory (VDL), at Chalmers Tvärgata 4 - 6

Opponent: Professor of Practice Virpi Roto, Aalto University, Finland

Mer information

Senast uppdaterat

2018-09-19