*********************************
There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
*********************************
Abstract: Users' experiences with interactive systems are constrained and enabled by the infrastructures that underlie them. While HCI has developed a substantial toolbox for designing and evaluating user interfaces and interactions, we have fewer options for considering user experience impacts of infrastructural capabilities during the design and development process. Infrastructure plays an especially prominent role in the domain of context-aware computing, where infrastructural components such as sensing and inference services are often designed alongside the interface and interaction capabilities. To improve the link between infrastructure and user experience perspectives, we built the RePlay system to facilitate the capture and re-use of sensor data during context-aware system design. RePlay has evolved to encompass a number of tools for capturing, querying, organizing, transforming, and replaying contextual traces throughout the development process, allowing designers and front-end developers to focus on interaction design problems while remaining grounded in the infrastructural and behavioral constraints represented by the captured data. This talk will describe our progress on RePlay, including formative studies with designers and developers to better understand the role that captured data can play in development activities, and will discuss ongoing and future work, including facilities to better support the co-design of context recognition services and user interfaces.