Managing Concurrent Activities in Collaborative Environments
نویسندگان
چکیده
An approach to support activities in collaborative databases is proposed. This approach merges exible transaction models from collaborative environments and semantics based cor-rectness criteria. A model is rst presented which incorporates the notion of collaboration in the context of transactions. A protocol is then developed based on this model for eecient management of collaborative activities. This is the rst attempt to formally incorporate the notion of collaboration in the database management system. Most earlier approaches provide tools and mechanisms to circumvent the isolation requirement of transactions. The protocol is a generalization of strict two phase locking since in the absence of collaboration, it reduces to strict two-phase locking.
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