Storage Retrieval

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By Siau K.

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Figure 4(A) shows the use of the UML-based ActivityFlow graphical notations to specify this activity flow procedure. When a node is clicked, the node information will be displayed in a quadruplet, including node type, name, its trigger, and its current state. When an edge is clicked, the edge information, such as the edge name, its departure and arrival nodes, and its current state, will be displayed. From Figure 4(A), it is obvious that activity node B is reachable from nodes A1, A2, A3 and A11.

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. Copyright © 2005, Idea Group Inc.

8 seconds. 8 is the growth factor in this segment. In fact, B restructuring at 25% presents the higher growth factor in the interval 0% to 50%. Consequently, such restructuring criterion is the most effective to dynamically manage delays during execution of WI because it permits achievement of the company goal for expressive delays on controlled activity A2, up to 54%, and it does not imply in a significant increase of the load over the computing environment (only affected WI are restructured).

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