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

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.
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.
Gregor Waltersdorfer
Doctoral candidate at the University of Luxembourg
Gregor has a background in mechanical engineering and business economics. Since his studies he is interested and engaged in sustainability. In his research he is exploring the role of designers for sustainability. Specifically, Gregor investigates how designers can successfully convey meaning to users in order to foster eco-sufficient user behavior. This project is financed by the National Research Fund Luxembourg (FNR).


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’.
Santiago Santiago De Francisco
Santiago studied Industrial Design at Universidad de los Andes in Bogotá, Colombia. After a couple of years working as a concept and product designer, he decided to start the Design for Interaction (DfI) master program at TU Delft. During his working experience he became interested in the importance of people’s behaviors and how those behaviors could be translated into objects, products and services with powerful meanings. Currently he has started a research project about the act of saving, using a piggy bank product as a starting point. This research aims to understand the importance of saving as an experience and its relation to happiness. As part of his graduation project plan, Santiago wants to take this knowledge about the act of saving and implement it in a larger scale.

Guest researchers

Angela Patricia Villareal Freire
Doctoral candidate at Electronic Sciences in the Universidad del Cauca, member of the Investigación y Desarrollo en Ingeniería de Software research group (IDIS) in Colombia with background in Systems Engineering and Computing. Working in the software sales department and in the programming area, she perceived the impact of a good interface design since it completely influences the users perception. In that moment it was initiated her principal interest, that is in Human-Computer Interaction area and how to improve web interfaces through good practices of design. Nowadays she is working on how to build more attractive interfaces for the children’s attention deficit disorder treatment under the belief that with good interface design it can be enhanced their concentration level.
Andrés Felipe Aguirre Aguirre
Andrés is a doctoral student in Electronics Sciences at the University of Cauca (Colombia) where he also did his Master’s degree in Computer Science and his undergraduate degree in Computer Engineering. He has worked in different areas of computing, but his main interest is the user experience. He has always been passionate about studying the inherent components of digital experiences. Now his work is focused on evaluating user satisfaction from an emotional approach.


Andreas D’Hollandere
After graduating as a Bachelor within the field of graphic/webdesign and as a Bachelor industrial product design in Belgium, Andreas loved to become more specialised in user interactions and how emotions and moods can be influenced and used within products and experiences. As a graduating student within the master’s program Design for Interaction, Andreas is currently researching the subject of how olfaction can improve the well-being of elderly with dementia in periods of stress. This graduation project gives him the opportunity to research a completely new field within interaction design, olfactory experience design with a strong link to well-being.
Hyunjoo Bae
Hyunjoo Bae has been interested in design for emotion and the color. As a research intern, she has started a project related to mood and colors of the light. She is exploring how people can interact with the lights as a tool to regulate their mood. In future, Hyunjoo would like to make people have more positive experiences in daily life through her design research.
Rushil Jain
Rushil has a background in product design. His fascination with human-product interactions began during his bachelor’s after one of those late night conversations about life, meaning and ‘deep stuff’. His quest for designing meaningful interactions and memorable experiences led him to opt for the Design for Interaction master track at the Delft University of Technology. He’s currently working on his thesis project involving stress and positive psychology.
GYoung is a master student at the design for interaction, IDE, TU Delft. Her project focuses on empowering the children who study in the multicultural backgrounds by positive design education. She studied industrial design and business and technology management in South Korea. She believes in that design can bring positive and meaningful changes to everyday.
Geert Brinkman
My name is Geert Brinkman and I am a Design for Interaction student at the Delft University of Technology. As I believe a design’s function is experiential, taking emotions into consideration when designing is necessary to make truly engaging products. As a research intern I’m part of a collaboration adapting Hans Ruitenberg’s Tiny task concept to the work environment. Working with psychologists from the Positive Organizational Psychology Lab of Erasmus University Rotterdam makes this internship really interesting.
Hazal Ertürkan
Positive design acquainted me with new ways to shape the future as a designer. I’ve gained a different perspective in addition to my industrial design background through DFI Master Programme. I became passionate to create meaningful experiences through interactions. My recent study is based on the Tiny Task concept, which aims to transform happiness enhancing activities into small tasks. The goal of the project is to adopt the concept into office environments to stimulate work engagement and increase happiness of employees.
Linxi Li
I studied creative media in my bachelor in China. During that, I was charmed by the diverse roles design can play in people’s daily life. As a graduating student within master program of Design for Interaction, I’m currently doing a graduation project on design for meaningful goals and well-being.
Nathalie Nieuwhof
During her master Integrated Product Design , Nathalie discovered positive design as a way for her to create meaningful products and to add to the beauty of everyday life. Her passion for various creative pursuits, such as knitting and printmaking, has been rekindled over the past few years. For her graduation she is now exploring how design can encourage engagement in such creative hobbies, with the aim to make leisure time be experienced as more fulfilling.

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.
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. He explored and formalized these insights into an approach that leads to richer, more meaningful product-user experiences.
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.