Moments of Significance
the meanings of event: enablement, initiation, completion
In Proceedings of Tamodia 2003, part of Human Computer Interaction,
Lawrence Erlbaum Associates, 2003.
keywords: events, triggers, groupware task analysis, status-event analysis
This paper examines the nature of events within task analysis. It draws on
three roots: Groupware Task Analysis, Trigger Analysis and Status-Event Analysis.
Each of these considers events and the way these enable or initiate activities,
but they have subtly different understandings of these. Analysing both these
distinctions and also the common features between them has lead to a deeper
theoretical understanding of the ontological nature of events (and their relationship
to activities/tasks), the attributes of these events (e.g. whether they originate
internal/external to the task context), and the relationship between the events
and tasks (e.g. different kinds of enablement/triggering).
references and links
- Dix, A. (2002). Managing the Ecology of Interaction. In Proceedings of
Tamodia 2002 - First Intnl Workshop on Task Models and User Interface Design,
Bucharest, Romania, 18-19 July 2002. <http://www.hcibook.com/alan/papers/tamodia2002/>
- Dix, A., Ramduny-Ellis, D., & Wilkinson, J. (2003). Trigger Analysis
understanding broken tasks. In D. Diaper & N. Stanton (Eds.), The Handbook
of Task Analysis for Human-Computer Interaction. Lawrence Erlbaum Associates.
(in press). <http://www.hcibook.com/alan/papers/triggers2002/>
- Dix, A. & Abowd, G. (1996). Modelling status and event behaviour of
interactive systems. Software Engineering Journal, 11 (6), 334-346. <http://www.hcibook.com/alan/papers/SEJ96-s+e/>
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to the Faculty of Sciences of the Vrije University of Amsterdam
Alan Dix 7/2/2003