Björn Hartmann

Interaction Design for Active Bodies: Two Themes (2009)

Scott R. Klemmer, Björn Hartmann

Our physical bodies play a central role in shaping human experience in the world, understanding of the world, and interactions in the world. Reality-based interfaces promise to better leverage the...

d.tools: Integrated Prototyping for Physical Interaction Design (2008)

Björn Hartmann, Scott R. Klemmer, Michael Bernstein

Designers tasked with imagining future information appliances currently employ separate tools for rapidly prototyping the form (the atoms) and the interaction model (the bits) because integrated...

Interaction Design for Active Bodies: Two Themes (2008)

Scott R. Klemmer, Björn Hartmann

Our physical bodies play a central role in shaping human experience in the world, understanding of the world, and interactions in the world. Reality-based interfaces promise to better leverage the...

Programming by a Sample: Rapidly Creating Web Applications with d.mix (2008)

Björn Hartmann, Leslie Wu, Kevin Collins, Scott R. Klemmer

Source-code examples of APIs enable developers to quickly gain a gestalt understanding of a library’s functionality, and they support organically creating applications by incrementally modifying a...

Reducing Clutter on Tabletop Groupware Systems with Tangible Drawers (2008)

Björn Hartmann, Meredith Ringel Morris, Anthony Cassanego

Simultaneously presenting multiple users ’ data on a single, shared display, such as an interactive tabletop, often results in visual clutter. One strategy to reduce clutter on horizontal surfaces...

Building Upon Everyday Play (2008)

Haiyan Zhang, Björn Hartmann

Most of today’s video game strategies are based on a static set of game controls and player actions that remain oblivious to the player’s context and own creativity. Building Upon Everyday Play...

Programming by a Sample: Rapidly Prototyping Web Applications with d.mix (2008)

Björn Hartmann, Leslie Wu, Kevin Collins, Scott R. Klemmer

As an increasing number of web sites provide APIs, significant latent value for supporting developers ’ use of these APIs lies in the site-service correspondence: the site and its API offer...

Hacking, Mashing, Gluing: A Study of Opportunistic Design and Development (2008)

Björn Hartmann, Scott Doorley, Scott R. Klemmer

This paper is about opportunistic practices in interactive system design: about copying and pasting source code from public online forums into one’s own scripts; about taking apart consumer...

Authoring Sensor-Based Interactions by Demonstration with Direct Manipulation and Pattern Recognition (2007)

Björn Hartmann, Leith Abdulla, Manas Mittal, Scott R. Klemmer

Sensors are becoming increasingly important in interaction design. Authoring a sensor-based interaction comprises three steps: choosing and connecting the appropriate hardware, creating application...

Wizard of Oz sketch animation for experience prototyping, Adjunct proceedings of Ubicomp 2006 (2006)

Björn Hartmann

Designers sketch during ideation because sketching enables rapid, concrete exploration and communication of concepts. But while sketches excel at expressing ideas, they cannot easily convey the...

Reflective Physical Prototyping (2006)

Through Integrated Design, Björn Hartmann, Scott R. Klemmer

Prototyping is the pivotal activity that structures innovation, collaboration, and creativity in design. Prototypes embody design hypotheses and enable designers to test them. Framing design as a...

How Bodies Matter: Five Themes for Interaction Design (2006)

Scott R. Klemmer, Björn Hartmann

Our physical bodies play a central role in shaping human experience in the world, understanding of the world, and interactions in the world. This paper draws on theories of embodiment — from...

Wizard of Oz sketch animation for experience prototyping, Adjunct proceedings of Ubicomp 2006 (2006)

Björn Hartmann

Designers sketch during ideation because sketching enables rapid, concrete exploration and communication of concepts. But while sketches excel at expressing ideas, they cannot easily convey the...

Reflective physical prototyping through integrated design, test, and analysis (2006)

Björn Hartmann, Scott R. Klemmer

Prototyping is the pivotal activity that structures innovation, collaboration, and creativity in design. Prototypes embody design hypotheses and enable designers to test them. Framing design as a...

Implementing expressive gesture synthesis for embodied conversational agents (2005)

Björn Hartmann, Maurizio Mancini, Catherine Pelachaud

Abstract. We aim at creating an expressive Embodied Conversational Agent (ECA) and address the problem of synthesizing expressive agent gestures. In our previous work, we have described the gesture...

Formational parameters and adaptive prototype instantiation for MPEG-4 compliant gesture synthesis (2002)

Björn Hartmann

This paper introduces Gesture Engine, an animation system that synthesizes human gesturing behaviors from augmented conversation transcripts using a database of highlevel gesture definitions. An...