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A point within the workflow where a single thread of control splits into two or more parallel activities.
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The execution of parallel activities commences with an AND-Split and concludes with an AND-Join. For example, in a credit application process there may be a split in the workflow at which point multiple activities are completed separately (in parallel, if not simultaneously.) At an And-Split separate threads of control within the process instance are created; these threads will proceed autonomously and independently until reaching an And-Join condition. In certain workflow systems, all the threads created at an And-Split must converge at a common And-Join point (Block Structure); in other systems convergence of a subset of the threads can occur at different And-Join points, potentially including other incoming threads created from other And-split points (Fig. 1).
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Palmer, N. (2016). Split. In: Liu, L., Özsu, M. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4899-7993-3_1552-2
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DOI: https://doi.org/10.1007/978-1-4899-7993-3_1552-2
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Publisher Name: Springer, New York, NY
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