Steps toward a partnership: ethnography and system design
Requirements engineering
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Model-Based Design and Evaluation of Interactive Applications
Model-Based Design and Evaluation of Interactive Applications
The Psychology of Human-Computer Interaction
The Psychology of Human-Computer Interaction
Design-oriented human-computer interaction
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
UMEA: translating interaction histories into project contexts
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
ConcurTaskTrees: A Diagrammatic Notation for Specifying Task Models
INTERACT '97 Proceedings of the IFIP TC13 Interantional Conference on Human-Computer Interaction
Support for activity-based computing in a personal computing operating system
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Acting with Technology: Activity Theory and Interaction Design (Acting with Technology)
Acting with Technology: Activity Theory and Interaction Design (Acting with Technology)
Do categories have politics? the language/action perspective reconsidered
ECSCW'93 Proceedings of the third conference on European Conference on Computer-Supported Cooperative Work
Plans as situated action: an activity theory approach to workflow systems
ECSCW'97 Proceedings of the fifth conference on European Conference on Computer-Supported Cooperative Work
TAMODIA'06 Proceedings of the 5th international conference on Task models and diagrams for users interface design
A prototype-driven development process for context-aware user interfaces
TAMODIA'06 Proceedings of the 5th international conference on Task models and diagrams for users interface design
Support for task modeling: a ”constructive” exploration
EHCI-DSVIS'04 Proceedings of the 2004 international conference on Engineering Human Computer Interaction and Interactive Systems
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Activity representations are proposed as an extension to traditional task models. Basically, an activity representation describes fragments of knowledge about several tasks and how to interleave or merge them. Knowledge about single tasks is spread over several representations at different levels of abstraction. Lower-level models are more ephemeral and help people to organise their day-to-day activities. On the one hand, their creation is supported by more stable representations reflecting goals, activity rhythms, domain knowledge etc. On the other hand, situated action is necessary to create such (task) knowledge. We show that higher-order activity representations provide a better explanation of some task-related aspects than monolithic single task models. For example, they support re-/on-the-fly planning and contribute to dispel the belief in complete and consistent task descriptions. The paper focuses on task redefinition, task grouping and polymotivated actions, activity spaces, goal elaboration, and the interplay between habits and learning. Some conclusions for interaction design are given.