IFIP WG 13.2 + 13.5 Workshop on Dealing with Conflicting User Interface Properties in User-Centered Development Processes


Important Dates

September 26th 2017 – Workshop

Registration for INTERACT 2017: https://interact2017.org/registration


Whilst usability, accessibility and, more recently, user experience have been prominent in the HCI research other properties such as privacy, trust, security, and reliability (among others) might also affect the development process of interactive systems. In some cases, a property might complement or enlarge the scope of another. For example, whilst accessibility addresses the needs of impaired users to accomplish their tasks with the system, UX goes beyond the pragmatic aspect of usability by taking into account dimensions such as emotion, aesthetics or visual appearance, identification, stimulation, meaning/value or even fun, enjoyment, pleasure or flow state experience. In some situations, a property might be tributary to another one such is the case of reliability and usability when non reliability of interactive software can jeopardize usability evaluation by showing unexpected or undesired behaviors. Moreover, there are some evidence that properties can trade off against each other as it is the case of usability and security. For example, requiring users to change their passwords periodically may improve security but reduce usability as it represents a burden for users to frequently create and remember passwords. As a consequence, users might be keen to workarounds, such as when users take hard notes of hard-to-remember passwords.
Conflicting user interface properties often appear in recommendations for user interface design. The resolution of conflicts between user interface properties is a daunting and demanding task that might require taking into account the trade-offs associated with alternative design choices. It is interesting to notice that when the conflict between properties is understood, the effects of conflicts can be mitigated/reduced by appropriate design.
Examples of conflict resolution between usability, privacy and security can be found at the SOUPS (https://cups.cs.cmu.edu/soups/) community. In this workshop we aimed at enlarge the scope of the research and promote the study of the interplay of multiple user interface properties in a user-centered design process.
Our aim is to cover a large set of user interface properties and try to reveal their inner dependencies. We are also interested in understand how different stakeholders value user interface properties. In a long run, this workshop aims at helping the development of theories, methods, tools and approaches for dealing with multiple properties that should be taken into account when developing interactive system.

Target audience

This workshop is open to everyone who is interested in multiple user interface properties while building their systems and how different these are valued by different stakeholders. We expect a high participation of the members of IFIP WG 13.2 and IFIP WG 13.5.
We invite participants to present position papers describing real-life case studies that illustrate the tradeoffs between two or more user interface properties. Any property related to user interface design is welcome but two or more properties should be addressed in the same contribution. We are also interested in methods, theories and tools for managing multiple user interface properties. Position papers will be published in adjunct conference proceedings of INTERACT 2017.
During the workshop we also expect to discuss how to disseminate individual contributions to the community in the form of a special issue in a HCI journal.


This workshop is a full-day one organized around presentation of position papers and working activities in small groups. From the set of contributions, a subset of selected case studies will be invited to be presented at the beginning of the workshop and will be used to support the discussion that follows.
The morning session will be dedicated to welcoming participants and presenting case studies. Participants will be invited to comment the case studies and to report similar experiences.
The afternoon sessions will be devoted to interactive sessions, where participants will be invited to work in small groups on and propose solutions to the problems of the case studies presented in the morning.
Solutions proposed by the participants will be compiled and compared. Based on the lessons learned, participants will be invited to draft an agenda of future work that can be accomplished.


08h30-09h00 Welcome and round table

09h00-11h00 – Technical session 1

9h – Conflicting Requirements and Design Trade-Offs. Alistair Sutcliffe. Manchester Business School, University of Manchester, UK.

9h30 – Designing End-User Development systems: reflections on the most valued system properties as perceived by end users. Carmelo Ardito, Maria Francesca Costabile, Giuseppe Desolda, Rosa Lanzilotti, and Maristella Matera. Università degli Studi di Bari Aldo Moro and Politecnico di Milano, Italy.

10h00 – QBP Notation for Explicit Representation of Properties, their Refinement and their Potential Conflicts: Application to Interactive Systems. Camille Fayollas, Célia Martinie, Philippe Palanque, Yamine Ait-Ameur. IRIT, Université Toulouse III, France.

10h30 – Facilitating Evolutionary UI Prototyping through Declarative Interaction. Cristian Bogdan. KTH Royal Institute of Technology, Stockholm, Sweden.

11h-11h30 – Tea break

11h30-12h50 – Technical session 2

11h30 – Whose Value Counts: Overcoming Stakeholder Value Conflicts in Agile Software Development. Kati Kuusinen. University of Southern Denmark, Denmark.

12h – Similarity as a Design Driver for User Interfaces of Dependable Critical Systems. David Navarre, and Philippe Palanque. ICS-IRIT, Université Toulouse III, France.

12h30 – Discussion of all papers

12h50 – 14h Lunch break

14h-15h20 – Working session 1

15h20-15h50 – Tea break

15h20-17h10 – Discussion and wrap-up

17h30 – WG 13.2 and WG 13.5 business meeting only for members and observers of the working groups.

Format of submissions

    Position paper (6-10 pages in LNCS format) must report practical experiences related to research results on user experience (UX) and user-centered development processes for interactive systems. Authors should also provide in their submission a short summary of their experience in the field and their motivation to participate in this workshop. Submissions will be processed via the workshop web pages that will be hosted at the IFIP WG 13.2 web site. Position papers will be reviewed by the organizers, and participants will be invited to attend the workshop based on review results. All selected contributions will appear in the workshop proceedings as part of the official ad-junct conference proceedings of INTERACT 2017. After the workshop, selected papers will be considered to a post-conference publication in the SPRINGER LNCS series. For that, we will invite authors revise their work according to the comments received during the workshop and prepare a full paper that should be published by November 2017 (tentative).

    Submission don’t need to be anonymous. Contributions can be sent by email to ws14-interact2017-organizers@googlegroups.com. If you have any question don’t hesitate to contact the organizers.


    July 7th 2017 – Submission of position papers
    July 21st 2017 – Notifications to workshop participants of acceptance into workshops.
    July 31st 2017 – Camera-ready workshop papers due for extended abstracts
    September 26th 2017 – Workshop


Name Background
Marco Winckler
Marco Winckler is Assistant Professor at University Toulouse 3, Toulouse, France. His research interests focus on model-based approaches for the design and evaluation of interactive systems. He currently serves as chairperson of the IFIP working group 13.2
Marta Larusdottir
Marta Larusdottir is an associate professor at Reykjavik University. Iceland. Her main research topic is the collaboration with users during design and evaluations of user interfaces. Lately Marta has focused on studying agile processes, especially Scrum, and how the usage of agile processes affect IT professionals in involving users in the development. She is in the board for IFIP working group 13.2 and the national member for Iceland in the IFIP TC13 committee.
Cristian Bogdan
Cristian Bogdan is an associate professor at KTH Royal Institute of Technology, Stockholm, Sweden.
Kati Kuusinen
Kati Kuusinen is Assistant Professor at University of Southern Denmark. Her research focuses on the social aspects of modern software engineering. She currently serves as secretary of the IFIP working group 13.2.
Philippe Palanque
Philippe Palanque is Professor in Computer Science at the University Toulouse 3 – Paul Sabatier and is head of the Interactive Critical Systems group at the Institut de Recherche en Informatique de Toulouse (IRIT) in France. The main driver of Philippe’s research over the last 20 years has been to address in an even way Usability, Safety and Dependability in order to build trustable safety critical interactive systems. He currently serves as secretary of the IFIP working group 13.5 on Resilience, Reliability, Safety and Human Error in System Development.