Mobility is the Message: Experiments with Mobile Media Sharing

This thesis explores new mobile media sharing applications by building, deploying, and studying their use. While we share media in many different ways both on the web and on mobile phones, there are few ways of sharing media with people physically near us. Studied were three designed and built systems: Push!Music, Columbus, and Portrait Catalog, as well as a fourth commercially available system – Foursquare. This thesis offers four contributions: First, it explores the design space of co-present media sharing of four test systems. Second, through user studies of these systems it reports on how these come to be used. Third, it explores new ways of conducting trials as the technical mobile landscape has changed. Last, we look at how the technical solutions demonstrate different lines of thinking from how similar solutions might look today. Through a Human-Computer Interaction methodology of design, build, and study, we look at systems through the eyes of embodied interaction and examine how the systems come to be in use. Using Goffman’s understanding of social order, we see how these mobile media sharing systems allow people to actively present themselves through these media. In turn, using McLuhan’s way of understanding media, we reflect on how these new systems enable a new type of medium distinct from the web centric media, and how this relates directly to mobility. While media sharing is something that takes place everywhere in western society, it is still tied to the way media is shared through computers. Although often mobile, they do not consider the mobile settings. The systems in this thesis treat mobility as an opportunity for design. It is still left to see how this mobile media sharing will come to present itself in people’s everyday life, and when it does, how we will come to understand it and how it will transform society as a medium distinct from those before. This thesis gives a glimpse at what this future will look like

Information scraps: how and why information eludes our personal information management tools

In this paper we describe information scraps -- a class of personal information whose content is scribbled on Post-it notes, scrawled on corners of random sheets of paper, buried inside the bodies of e-mail messages sent to ourselves, or typed haphazardly into text files. Information scraps hold our great ideas, sketches, notes, reminders, driving directions, and even our poetry. We define information scraps to be the body of personal information that is held outside of its natural or We have much still to learn about these loose forms of information capture. Why are they so often held outside of our traditional PIM locations and instead on Post-its or in text files? Why must we sometimes go around our traditional PIM applications to hold on to our scraps, such as by e-mailing ourselves? What are information scraps' role in the larger space of personal information management, and what do they uniquely offer that we find so appealing? If these unorganized bits truly indicate the failure of our PIM tools, how might we begin to build better tools? We have pursued these questions by undertaking a study of 27 knowledge workers. In our findings we describe information scraps from several angles: their content, their location, and the factors that lead to their use, which we identify as ease of capture, flexibility of content and organization, and avilability at the time of need. We also consider the personal emotive responses around scrap management. We present a set of design considerations that we have derived from the analysis of our study results. We present our work on an application platform, jourknow, to test some of these design and usability findings

Designing Tools for Reflection: a concept-driven approach

We are surrounded by objects. We often use and interact with them to do our daily activities. They do not only support us and augment our abilities, but also, can be considered as companions of our thoughts. We think with objects, because they contain information about us: about our memories, experiences, emotions, and activities as Sherry Turkle highlights (2011). Furthermore, our everyday objects are increasingly computed, smart and connected to the Internet. They are able to collect data, elaborate and provide real-time feedbacks. These feedbacks cannot only support us to improve our activities, but also enables critical thinking and reflection on our actions. This resonates very well with what Donald Schön meant by having reflective conversation with materials at hand (1983;1996). He highlighted that materials –artifacts– of a situation talk back to designer, so they enable and support reflection in action of designing. So, how about if we consider that our daily objects can talk back and make us think on our actions in order to consider alternatives? This dissertation, is an attempt to consider this opportunity. The nature of this dissertation is mostly conceptual and its scope is defining the physical and behavioral characteristics of smart artifacts able to provoke thoughts and reflection in user leading to a conscious behavior change. I sought to use existing theories about reflective thinking in HCI and beyond, as valuable sources for developing design concept. I have been inspired by the Concept-Driven interaction design research (Stolterman and Wiberg 2011) and created and defined the whole structure of this dissertation based on this methodology, from the definition of the concept – Tool for Reflection – to the construction of a theoretical model from the design outcome –Make Me Think model. During this process, I used different methods such as conducting literature analysis, context analysis, survey, participatory session and prototyping. The sustainable urban mobility behaviors in the city of Turin (Italy) as the target behavior and home as the place for using Tool for Reflection have been chosen for this research. In particular, informed by architectural studies, I conceptualized In-Between Places as a category of places that connect home places to city places. I suggested to consider such areas as suitable places for evoking thoughts on urban mobility behaviors, in home. This dissertation provides a theoretical perspective with which to guide the design of smart objects that evoke reflection. It first provides a set of characteristics of a Tool for Reflection as a physical artifact. Then it provides a theoretical model, considering the relationship between a Tool for Reflection and a user. The key contributions include the design of the Sóle, a smart lamp, not only as an example of a Tool for Reflection with its theoretically pre-defined characteristics, but also as an instrument for iterating from design to the theory. The overall approach, the methodology and the findings should be of interest in particular to researchers working on design for reflection in the HCI. More broadly this dissertation can be of interest of researchers in the HCI, whose research is around designing artifacts, both as an ‘outcome’ and as an ‘instrument’ of the research process

Designing Familiar Open Surfaces

While participatory design makes end-users part of the design process, we might also want the resulting system to be open for interpretation, appropriation and change over time to reflect its usage. But how can we design for appropriation? We need to strike a good balance between making the user an active co-constructor of system functionality versus making a too strong, interpretative design that does it all for the user thereby inhibiting their own creative use of the system. Through revisiting five systems in which appropriation has happened both within and outside the intended use, we are going to show how it can be possible to design with open surfaces. These open surfaces have to be such that users can fill them with their own interpretation and content, they should be familiar to the user, resonating with their real world practice and understanding, thereby shaping its use

Understanding the Formation of Trust in IT Artifacts

IT artifacts often take the role of a trustee in a trust relationship between users and IT artifacts. The goal of this paper is to increase the understanding of the formation of trust in such trust relationships. Instead of using the predominant theoretical foundation of interpersonal trust, we use the theoretical foundation of trust in automation from the HCI discipline for studying the formation of trust. Since we aim at creating insights on the formation of trust and its dimensions, we develop a formative first-order, formative second-order measurement model for trust. To evaluate the impact of the single indicators and dimensions on trust, we conduct a laboratory experiment. Our results show that the dimensions performance, process and purpose have a comparable impact on trust, and that indicators related to user data are especially important. The results complement existing insights, deepening the understanding of the formation of trust in IT artifacts

Designing speculative artifacts

In recent decades, Mark Weiser's vision of ubiquitous computing has become today's reality through embedded electronics, the rise of machine learning, and the proliferation of wireless Internet access. This development brings not only opportunities but also new challenges for the Human-Computer Interaction (HCI) community. Technology, for example, is (1) entering novel application scenarios and pristine interaction environments, (2) leaving the screen and conquering the physical world, and (3) changing the previous tool-like nature of computers to social, self-learning, and pro-active entities. As a result, there are no already established interaction paradigms, metaphors, and design strategies for designing such systems. Thus, HCI faces questions about the interaction design in the context of embedded systems and novel materials, the conceptualization of intelligent systems in everyday environments, and, subsequently, the consequences on human-technology relations. To approach such questions, a standard tool in HCI research is the human-centered design process, which creates knowledge about user needs and considers user perspectives to inform design decisions. Observations and interviews are used to understand the context, workflow, or tools, before developing ideas and concepts for technological improvements or solutions. This process has proven to be effective when dealing with matters familiar to users, such as their workplaces, leading to improved workflows and experiences. However, it remains open how design can be grounded if future technologies result in unfamiliar situations. When people can no longer contribute with their domain knowledge, what are novel interaction concepts, paradigms, and designs based on? To tackle these problems, I present and discuss a programmatic design approach to generate original design ideas and concepts. This approach builds on Speculative and Critical Design practices within the HCI context. The main idea central to this work is to create designs using real-world patterns to inform HCI since these patterns still comply with users' prior knowledge, experiences, and perception of fundamental social or natural principles. Such Real-World Patterns (RWP) can be familiar metaphors, morphologies, or mental models - e.g., understanding causality in the physical world or knowing the basic working principles of musical instruments. These patterns are chosen and then transferred into designs to meet or contradict users' expectations of the technology in order to create confrontational situations in which new perspectives are opened up. Based on the confrontation with the speculative artifacts, implications and requirements are deduced, which in reverse can be applied to future technologies. The projects presented apply this approach in various HCI research domains, including human-robot interaction, new interfaces for musical expression, and deformable and flexible interfaces. In this dissertation, I reflect on the approach using three questions: (Q1) How does the use of RWPs complement the Research through Design practice?; (Q2) How can RWPs be instrumentalized in the design of HCI systems?; and (Q3) How does the use of RWPs in design affect the relation between humans and technology? This thesis contributes (1) an overview of the approach as well as three perspectives which are instrumental in understanding and applying RWPs in the design of HCI, (2) eight speculative artifacts, which exemplify the approach, (3) theories and concepts inspired by the used RWPs, and (4) empirical knowledge deduced from the associated studies and surveys.In den letzten Jahrzehnten ist Mark Weisers Vision des Ubiquitous Computing durch eingebettete Systeme, den Aufstieg künstlicher Intelligenz und die Verbreitung des drahtlosen Internetzugangs zur heutigen Lebensrealität geworden. Diese Entwicklung bringt nicht nur Chancen, sondern auch neue Herausforderungen für die Human Computer Interaction (HCI) Community mit sich. Technologien dringen bspw. in neuartige Anwendungsszenarien und noch unberührte Interaktionsumgebungen ein, verlassen den Bildschirm und erobern die physische Welt und verändern so den bisherigen werkzeugartigen Charakter von Computern zu sozialen, selbstlernenden und proaktiven Entitäten. Infolgedessen gibt es keine bereits etablierten Interaktionsparadigmen, Metaphern und Designstrategien, auf die für die Gestaltung solcher Systeme zurückgegriffen werden könnte. Für die HCI stellen sich daher Fragen zur Interaktionsgestaltung im Kontext eingebetteter Systeme und neuartiger Materialien, zur Konzeptualisierung intelligenter Maschinen in Alltagsumgebungen und folglich zu den Auswirkungen auf die Beziehung, in der Mensch und Technologie zueinander stehen. Um sich solchen Fragen zu nähern, ist in der HCI der Human-Centered Design Prozess eine verbreitete Vorgehensweise, die Erkenntnisse über die Bedürfnisse der Benutzer:innen schafft und deren Perspektive bei Designentscheidungen berücksichtigt. Beobachtungen und Interviews werden genutzt, um den Kontext, die Arbeitsabläufe oder Werkzeuge zu verstehen, bevor Ideen und Konzepte für technische Lösungen entwickelt werden. Dieses Vorgehen hat sich als effektiv erwiesen und führt zu Verbesserungen von Technologien, solange die betreffenden Situationen den Nutzer:innen vertraut sind. Offen bleibt jedoch, worauf Design-Konzepte bauen können, wenn zukünftige Technologien zu ungewohnten Situationen führen. Worauf basieren neuartige Interaktionskonzepte, Paradigmen und Entwürfe, wenn Menschen nicht mehr mit ihrem Fachwissen und Erfahrungen beitragen können? Um diese Problematik anzugehen, präsentiere und diskutiere ich in dieser Dissertation einen programmatischen Ansatz, um neuartige Designideen und -konzepte zu entwickeln. Dieser baut auf den Praktiken des spekulativen und kritischen Designs im HCI-Kontext auf. Im Mittelpunkt steht die Entwicklung von Designs unter Verwendung von Mustern aus der realen Welt, da diese das Vorwissen der Nutzer:innen sowie soziale und natürliche Prinzipien einbeziehen. Bei solchen Real-World Patterns (RWP) kann es sich um vertraute Metaphern, Morphologien oder mentale Modelle handeln, bspw. um das Verständnis von Kausalität in der physischen Welt oder um die Kenntnis der grundlegenden Funktionsprinzipien von Musikinstrumenten. Potentielle Muster werden ausgewählt und derart in Entwürfe übertragen, dass die Erwartungen der Nutzer:innen an die Technologie erfüllt oder ihnen widersprochen wird. So werden konfrontative Situationen geschaffen, in denen sich neue Perspektiven eröffnen. Aus der Konfrontation mit den spekulativen Artefakten werden Implikationen und Anforderungen abgeleitet, die sich im Umkehrschluss auf zukünftige Technologien anwenden lassen. Die vorgestellten Projekte wenden diesen Ansatz in verschiedenen HCI-Forschungsbereichen an, unter anderem in der Mensch-Roboter-Interaktion, im Kontext neuer Schnittstellen für die musikalische Interaktion, sowie für deformierbare und flexible Schnittstellen. In dieser Dissertation reflektiere ich den Ansatz anhand dreier Fragen: (Q1) Wie ergänzt der Einsatz von RWPs die Research through Design Praxis?; (Q2) Wie können RWPs für das Design von HCI-Systemen instrumentalisiert werden?; und (Q3) Wie beeinflusst der Einsatz von RWPs die Beziehung zwischen Mensch und Technologie? Der Beitrag dieser Arbeit liegt in (1) einem Überblick über den Ansatz sowie in den drei Perspektiven, die für das Verständnis und die Anwendung von RWPs in der Gestaltung von HCI maßgeblich sind, (2) den acht spekulativen Artefakten, die den Ansatz beispielhaft darstellen, (3) den Theorien und Konzepten, die von den verwendeten RWPs inspiriert sind, und (4) den empirischen Erkenntnissen, die aus den zugehörigen Studien und Umfragen abgeleitet wurden