Our Team


Pieter Desmet
Desmet introduced cognitive emotion theory to the domain of design research, and is board member of the International Design and Emotion Society. Desmet was recently awarded a five year personal grant for research that aims to understand the nuances of positive emotions in human-product interactions.
Anna_Pohlmeyer Anna Pohlmeyer
Anna Pohlmeyer’s background is in psychology (Humboldt University Berlin). Furthermore, she completed her PhD research in engineering design at TU Berlin and the University of Luxembourg. Her thesis focused on early phases of product development in the design of human-technology interaction. Prior to her doctoral studies, she worked at MIT AgeLab on ideas and technologies that can improve quality of life across the lifespan. As assistant professor at TU Delft, she investigates theoretical and empirical aspects of design-mediated well-being.

Doctoral candidates

Steven Fokkinga
Fokkinga introduced the possibility of involving negative emotion in product interaction, thus unlocking a whole new range of potentially enjoyable product experiences for designers. Fokkinga was recently granted a four year PhD-fund to explore and formalize these insights into an approach that will lead to richer, more meaningful product-user experiences.
yoon Jay Yoon
Jay Yoon is a PhD candidate at Industrial Design Engineering of TU Delft. He has a background in industrial design and computer science. His research focuses on emotion-driven design, mainly concerning how understanding nuances of positive emotions can contribute to a design process. He has been developing design tools and techniques aiming to assist designers to be aware of differentiated aspects between distinct positive emotion types. He is currently working on identifying the opportunities to work with the awareness of nuances of positive emotions.
Personal webpage
Deger Ozkaramanli
Deeply inspired by people’s contradictions, I aim to develop new ways with which designers can tackle potential conflicts between virtuous and tempting goals. In this way, design can inform, seduce, or persuade people to choose a course of action that balances choices between virtues and temptations, contributing to their wellbeing.
Mafalda Casais
Mafalda has a background in illustration, graphic design and industrial design (MSc). Her PhD research at TU Delft focuses on the symbolic value of household products, its influence on personal values, behaviour and self-expression and its contribution to subjective well-being of the user.
Wan Jou She (Lavender)
Young, passionate, humorous, lovely and empathic.That’s all you should know about this researcher. Wan Jou, who’d prefer to be called Lavender, has a deep interest in human relationships and subjective well-being. With the graphic design and English literature background, Lavender’s PhD research deals with various types of relationship loss such as separation, death and breakup. In this study she explores design directions that can nudge and facilitate individuals’ loss coping processes and provide a meaningful and constructive ways of coping with loss.
Profile picture DIOPD website (cropped ID studiolab) Boudewijn Boon
Doctoral candidate at the TU Delft, Faculty of Industrial Design Engineering
Boudewijn is interested in how design can play a role in shaping the ways people live their lives. During his master thesis (MSc Industrial Ecology) and his work as a research assistant for Pieter Desmet, this interest was reflected in his research on how design can facilitate ‘the good life within ecological means’. As a PhD candidate he is currently exploring how design can engage children with cancer in physical play and thereby stimulate their physical development.


Juan Carlos Ortiz Nicolás
Doctoral candidate at the Imperial College London
PhD student researching user experience in the Department of Mechanical Engineering at Imperial College London. He is interested in understanding how consumers experience positive encounters with products. Juan Carlos was granted a three-year PhD-fund to explore and develop tools based on an emotion and user experience innovation approach.
Hans Ruitenberg
Interaction Designer at ICEMOBILE
Hans has worked on the domain of positive emotion and well-being from a design perspective. In his thesis ‘Design for Subjective Well-Being’, he developed designs to answer the question: ‘Can strategies for subjective well-being be translated into or supported by tangible designs that inspire and persuade people to adopt these strategies into their daily lives?’ Together with the DIOPD he has set up a pilot project for Tinytask; the product-service that resulted from his thesis.
Maria Sääksjärvi
Associate Professor at the TU Delft, Faculty of Industrial Design Engineering
Maria Sääksjärvi is Associate Professor at the Department of Product Innovation Management at Delft University of Technology, The Netherlands. She holds a Ph.D. in Marketing. Prior to her academic career, she worked at Accenture as a management consultant. Her research interests lie in the areas of innovations, emotional well-being, and high technology. She has published 18 journal articles in journals such as Journal of the Academy of Marketing Science, Psychology & Marketing, Journal of Interactive Marketing, PLOS One, among others.
Simon Jimenez Simon Jimenez
User-centered designer and design researcher www.simonjj.com
Simon Jimenez is a user-centered designer and researcher inspired by human behaviour and flourishing. Simon completed the ‘Integrated Product Design’ master’s programme at the Faculty of Industrial Design Engineering at Delft University of Technology, The Netherlands. As a designer, Simon wants to understand people, and how they interact with and within their environments, in order to create meaningful products and services that add value to people’s lives. Simon is co-editor of the ‘Positive Design Reference Guide’.
Ilaria Scarpellini
Ilaria recently graduated at IDE in Integrated Product Design & Design for Interaction. Since 2011 she has been actively involved with the DIOPD. She collaborated to the research “Positive emotions in human-product interactions” and “Measuring product meaning”. She also developed the “Emotion Rainbow”, to support designers that are willing to include positive emotional aspects in their projects. During her graduation project, she investigated the implications of the Reversal Theory in the design process and developed the sensitizing tool “Carousel of Feelings”. At the moment she is research and education assistant for the DIOPD.


our team-emma Emma Heijerman
Emma is currently graduating from the master ‘Integrated Product Design.’ As a designer she likes exploring contexts as a starting point for a project, thus her graduation project has more of a ‘Design for Interaction’ set-up. She is graduating for the Erasmus Medical Center in Rotterdam, for which she will design a support for people with bothersome tinnitus that will help them learn to live with tinnitus.
our team-hui Hui Lin
After completing his bachelor degree of Industrial Design at Zhejiang University in Hangzhou, China, Hui continued his design study at TU Delft, doing the master program ‘Design for Interaction’. Hui has been fascinated by how design can influence people’s emotion, behavior and in the very end, well-being. After an internship on ‘Tinytask’, which about how design can be integrated with subjective well being theories, Hui decided to explore more on the topic of design for emotion by applying positive design thinking into his graduation project, a project aims to enhance consumers’ engagement with personal financial management by using mobile technology, trying to introduce emotion elements into application design, which is an unexplored field for mobile application developer.
our team-jonas Jonas Bähr
Born in eastern Berlin and growing up in the Netherlands for most of his life, Jonas has always struggled with the abundance and obsolete character of conventional design. While studying Design for Interaction at the TU Delft he fell in love with the hopeful vision of DIOPD: Design for human flourishing.
At the moment Jonas is graduating to shed some light on the question: how to design for mood regulation? Together with ‘International Flavors & Fragrances’ this question is being approached from a fragrance perspective. Which brings up a new question: how to design for scents? Its fascinating journey about a new field that is characterised by unexplored opportunities for interaction designers. More on that during the final presentation in september, so stay tuned!
Roby-portrait-100px Roby Michelangelo Vota
Roby is a passionate and cheerful Italian guy, strongly guided by values: humanity, sensitivity, respect for people, integrity, ambition, perfectionism. After a Bachelor’s degree in Mathematics, he revolutionised his life and started a design career at Politecnico of Milan and then at TU Delft as a Design for Interaction student. His deep interest in (positive) psychology guides his personal and professional mission to improve people’s sense of life pleasantness and meaningfulness.
Picture_DIOPD Frank Stemerding
After completing the bachelor degree of Industrial Design Engineering in Delft, Frank decided to grasp human-product interaction and its effect on human well-being by continuing with the Master Design for Interaction in Delft. Frank believes design should not just lend a hand, it should make life more pleasurable. He tries to accomplish this by focusing on the use of game experiences in non-gaming contexts. In his graduation project Frank is trying to increase work engagement for employees whose job is currently changing due to automation by using gamification.
Lisa Lisa van de Merwe
After her Bachelor at IDE, Lisa continued with the Master ‘Design for Interaction’. She became interested in how people have certain rituals and habits that influence their well-being. In her graduation project, she studies the habit of social comparisons and how it
drives overconsumption. Together with DIOPD and Oxfam UK, Lisa investigates how a collaborative activity that strengthens social assets can provide an alternative experience in order to enhance community well-being of a neighbourhood with a low social index.

Honorary members

jaya_cumar Jaya Kumar
Jaya Kumar is former president of PepsiCo’s global nutrition group. He is currently senior vice-president for strategy in Asia of Mondelez International (an American multinational confectionery, food and beverage conglomerate), heading the Southeast Asia division.
Eapen George Eapen George
Eapen George is the former V.P. R&D for Innovation at PepsiCo. Eapen is passionate about creating brands and products in the pursuit of positive emotions. He understands that with the right story, we can create powerful sensory signatures for core brands. With his new company, Round Feather, he is currently setting up a global network of like-minded people to undertake projects around the world that apply the principles of positive design.
Beatrijs Voorneman
Beatrijs Voorneman works on the domain of positive emotions and well being from a design perspective. In her Master thesis ‘Improving the welfare of pigs’ she discovered a new field within this domain: design for animal welfare. In 2011 and 2012, Beatrijs was project manager of the DIOPD.