Macquarie University ResearchOnline

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/19270

Title

Locking without requesting a lock : a consistency maintenance mechanism in internet-based real-time group editors

Related

Journal of parallel and distributed computing, Vol. 65, Issue 7, p.801-814

DOI

10.1016/j.jpdc.2005.03.005

Publisher

Elsevier

Date

2005

Author/Creator

Xue, Liyin

Author/Creator

Orgun, Mehmet A

Description

Consistency maintenance is an important issue in groupware systems. This article proposes an exclusive version locking scheme for consistency maintenance in Internet-based real-time collaborative editing environments. With this scheme, it is not necessary to propagate lock requests over the network. Locks will be automatically enforced by the system in a distributed way. The scheme supports concurrent editing on the same object by multi-versioning. Individual users’ concurrent conflicting intentions are thus accommodated in different versions. Meanwhile, each version is guaranteed to be exclusively locked by one user such that conflict resolution processes among users can be facilitated. Several version locking protocols are also defined to preserve the atomicity of a user's multiple intentions on the same object. The scheme and protocols have been implemented in a research prototype called POLO.

Description

14 page(s)

Subject Keyword

locking

Subject Keyword

multi-versioning

Subject Keyword

consistency maintenance

Subject Keyword

group editors

Subject Keyword

CSCW

Resource Type

journal article

Organisation

Macquarie University. Dept. of Computing

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Identifier

http://hdl.handle.net/1959.14/19270

Identifier

ISSN:1096-0848

Identifier

mq-rm-2005002072

Language

eng

Reviewed

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Subject

"Journal of parallel and distributed computing"

 

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