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Title: Replicated concurrency control for collaborative feature modelling: A fine granular approach
Authors: Li, M.
Gao, S.
Fuh, J.Y.H. 
Zhang, Y.F. 
Keywords: Computer-aided design
Concurrency control
Cooperative design
Fine granularity
Heterogeneous structure
Issue Date: Dec-2008
Citation: Li, M., Gao, S., Fuh, J.Y.H., Zhang, Y.F. (2008-12). Replicated concurrency control for collaborative feature modelling: A fine granular approach. Computers in Industry 59 (9) : 873-881. ScholarBank@NUS Repository.
Abstract: It is still an open challenge to realize a fine granular concurrency control in a cooperative design (co-design) environment in a fully replicated manner. The fine-grain concurrency control enables multiple users to manipulate well-partitioned portions of a shared product model as opposed to the entire one, where a high degree of operational parallelism is achieved to maximize concurrent collaborations in a natural modelling way. This paper proposes a feature granularity concurrency control approach for the collaborative feature modelling, which supports simultaneous design operations in replicated co-design systems. Firstly, a decentralized mutual exclusion agreement on a single object is extended to a replicated concurrency control mechanism supporting multiple mutually excluded objects. Secondly, a feature granularity concurrency control approach is devised for replicated co-design systems to ensure the consistency of replicated models after concurrent manipulations. Finally, the proposed approach is realized in a real-time co-design environment consisting of multiple heterogeneous computer-aided design (CAD) systems, which proves the feasibility of the approach in the industrial implementation. © 2008 Elsevier B.V. All rights reserved.
Source Title: Computers in Industry
ISSN: 01663615
DOI: 10.1016/j.compind.2008.07.003
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