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|Title:||Indeed: An active database for concurrent engineering|
|Author(s):||Mattox, David D.|
|Doctoral Committee Chair(s):||Lu, Stephen C-Y|
|Department / Program:||Computer Science|
|Degree Granting Institution:||University of Illinois at Urbana-Champaign|
|Abstract:||Concurrent engineering is a methodology for design which is increasing in popularity at large manufacturing organizations. Because of this methodology's focus on group rather than individual productivity, many computer-based tools do not provide adequate support. This thesis describes a model for an active, object-oriented database which has been designed to support engineers involved in a joint design effort. This database provides the means to represent and manage information that has traditionally not been within the scope of computerized design tools. Users can represent the heuristics and relationships present in the design as well as the design objects. As well, the model allows for the retention of historical information which can show how values in the database were derived.
To facilitate the effective communication of this information this thesis also describes a new methodologies for accessing and sharing information. A new transaction management system is described which takes advantage of the dependency information recorded in the database. This transaction model uses optimistic locking to allow concurrent access to data by all users but minimizes the effects of conflicts when they occur. Also, a new workspace model is defined which breaks down the rigid boundaries between workspaces and allows users to selectively share information.
|Rights Information:||Copyright 1995 Mattox, David D.|
|Date Available in IDEALS:||2011-05-07|
|Identifier in Online Catalog:||AAI9522148|