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Otherwise, a new C:ALLOCATELINES instance is fired until the profit level required may be reached. Definition 6 (termination property) An activity flow instance terminates if its end node is triggered. A flow instance is said to satisfy the termination property if the end node will eventually be fired. The termination property guarantees that the flow procedure instantiation will not “hang”. Definition 7 (precedence preserving property) Let G = < N, E > be an activity flow. An activity flow instance of G is said to satisfy precedence preserving property if the node firing sequence is compatible with the partial order defined by the activity precedence dependencies in G.

Copying or distributing in print or electronic forms without written permission of Idea Group Inc. is prohibited. TEAM LinG 20 Liu, Pu and Ruiz To illustrate the definition, let us recast the telephone service provisioning workflow procedure depicted in Figure 4(A) diagram and described in Figure 5 in terms of the above definition as follows: • • N = {(Begin, NeedService, not fired, simple), (A1, NeedService, not fired, simple), (A2, commit(A1), not fired, simple), (OS1, commit(A2), not fired, OR-Split), (A3, creditStatus = true, not fired, simple), (OS2, commit(A3), not fired, OR-Split), (A11, circuitAllocated = false, not fired, simple), (OJ2, circuitAllocated = true ∨ commit(A11), not fired, OR-Join), (B, terminate(OJ2), not fired, compound ), (OJ1, creditStatus = false ∨ commit(B), not fired, OR-Join), (End, terminate(OJ1), not fired, simple)} E = {Begin → A1, A1 → A2, A2 → OS1, OS1 → A3, OS1 → OJ1, A3 → OS2, OS2 → OJ2, OS2 → A11, A11 → OJ2, OJ2 → B, B → OJ1, OJ1 → End} Note that NeedService is a Boolean variable from the ActivityFlow runtime environment.

We access information from multiple remote information sources available on the Internet by using the uniform addressing of information via URLs (Uniform Resource Locators) and the transmission of data via HTTP Copyright © 2005, Idea Group Inc. Copying or distributing in print or electronic forms without written permission of Idea Group Inc. is prohibited. TEAM LinG Dynamic Workflow Restructuring Framework for Long-Running Processes 41 (HyperText Transfer Protocol). The HTML fill-in forms are the main interaction media between users and a server.

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