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Synonyms

Synchronous join

Definition

The point of convergence within a workflow following alternative, mutually exclusive paths.

Key Points

An OR-Join (Fig. 1) represents a point within a workflow where two or more alternative workflow branches re-converge following an OR-Split into a single common activity as the next step within the workflow. In contrast with an AND-Join, no parallel activity execution has occurred at the join point, therefore no synchronization is required. With an OR-Join a thread of control may arrive at the specific activity via any of several alternative preceding activities.

OR-Join. Figure 1
figure 1_1551

OR-Join.

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© 2009 Springer Science+Business Media, LLC

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Palmer, N. (2009). OR-Join. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_1551

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