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Open Implementation and Flexibility in CSCW Toolkits

Dourish, James Paul; (1996) Open Implementation and Flexibility in CSCW Toolkits. Doctoral thesis (Ph.D), UCL (University College London). Green open access

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The design of Computer-Supported Cooperative Work (CSCW) systems involves a variety of disciplinary approaches, drawing as much on sociological and psychological perspectives on group and individual activity as on technical approaches to designing distributed systems. Traditionally, these have been applied independently-the technical approaches focussing on design criteria and implementation strategies, the social approaches focussing on the analysis of working activity with or without technological support. However, the disciplines are more strongly related than this suggests. Technical strategies-such as the mechanisms for data replication, distribution and coordination-have a significant impact on the forms of interaction in which users can engage, and therefore on how their work proceeds. Consequently, the findings of sociological and psychological investigations of collaborative working have direct impact for how we go about designing collaborative systems. In support of this relationship, this thesis concentrates on the provision of flexibility in CSCW systems, and, in particular, in toolkits from which they are generated. Flexibility is key to supporting many characteristics of group behaviour detailed by observational investigations-the improvised nature of work and activity, individual and group tailoring, customisation and re-purposing, changing group membership and activity over the course of a collaboration, and so forth. Based on an analysis of current CSCW toolkits, and on the interaction between user behaviour and system design, I will demonstrate that, as in many other areas of system development, traditional notions of abstraction in system design mitigate against the design of open, flexible systems. "Open Implementation" is an emerging approach based on the systematic and principled exposure of mechanism in system components, "opening up" abstractions to examination and manipulation. Concentrating particularly on distributed data management and concurrency, I will show how these ideas can be exploited to provide an open and customisable framework enabling programmers and end-users to tailor toolkit structures to the needs of applications and domains.

Type: Thesis (Doctoral)
Qualification: Ph.D
Title: Open Implementation and Flexibility in CSCW Toolkits
Open access status: An open access version is available from UCL Discovery
Language: English
Additional information: Thesis digitised by ProQuest.
URI: https://discovery.ucl.ac.uk/id/eprint/10103825
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