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102
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CONCURRENCY
2006
14 years 12 months ago
2006
In this paper, we examine the issues of workflow mapping and execution in opportunistic environments such as the grid. As applications become ever more complex, the process of cho...
112
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DBA
2006
15 years 1 months ago
2006
: Recursive queries are required in many object-oriented database applications. Among them we can mention Bill-Of-Material (BOM), stock market dependencies, various kinds of networ...
JHSN
2006
14 years 11 months ago
2006
We present a refined model for Role Based Access Control policies and define a risk measure for the model, which expresses elements of the operational, combinatorial and conflict ...
IGPL
2010
14 years 10 months ago
2010
In this paper we present a new model for the requirements analysis of a system. We offer a conceptual model defined following a visual modeling language, called dependence network...
ISPDC
2006
IEEE
15 years 5 months ago
2006
IEEE
Data replication permits a better network bandwidth utilization and minimizes the effect of latency in large-scale systems such as computing grids. However, the cost of maintainin...