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Atomic Actions and Resource Coordination Problems Having Nonunique Solutions

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1 Author(s)
Sinha, M.K. ; National Centre for Software Development and Computing Techniques, Tata Institute of Fundamental Research

The concept of atomic actions is decomposed into database-dependent atomic actions and application-dependent atomic actions. There is a broad class of application-dependent atomic actions that can have nonunique solutions. These are resource coordination problems and are classified as problems of NU class. It is argued that a transaction modeling a problem of NU class provides lower concurrency. A concept of coordination is proposed which can model a broad range of NU class problems. An object model and a protocol are sugested which utilize the nonunique character of the solution to provide higher concurrency.

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Software Engineering, IEEE Transactions on  (Volume:SE-11 ,  Issue: 5 )