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https://hdl.handle.net/2142/81893
Description
Title
Activity Management in Cooperative Environments
Author(s)
Chaing, Heien-Kun
Issue Date
1997
Doctoral Committee Chair(s)
Belford, Geneva G.
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Information Science
Language
eng
Abstract
With the advent of advanced computer network and information technology and the popularity of Internet, computer supported cooperative applications in software and engineering environments have begun to emerge. However, most of them lack the support from database systems. The need for database support in these applications has become more important than ever before because of the critical role databases play in serving as the data repository and in facilitating the exchange of information. Object-oriented database systems have emerged as the best candidates for modeling cooperative applications due to their rich semantics and powerful modeling constructs. In this proposal, we will describe the design of an activity data model and its specification language for cooperative work in software development and engineering environments. The proposed activity data model is unique in that its data model consists of properties of both the object model and the process model, which are needed in effectively modeling cooperative applications. The proposed activity data model provides several key features, which current Computer Supported Cooperative Work systems lack, to model the dynamic behaviors of interacting objects in cooperative applications. These key features include an activity-based data model to capture the activeness and autonomy of objects, an association relationship for object notification and delegation, a user specifiable communication sequences for interacting objects, an actor/roles scenario for modeling objects' dynamic behaviors, and a contract/responsibility mechanism to facilitate inherent constraints on objects. Thus, the proposed activity data model and its specification language can effectively support the needs of CSCW (Computer Supported Cooperative Work).
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