Issue - 4 - Dynamic parallel processing

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Issue - 4 - Dynamic parallel processing

Category: Requirement
Origin: Initial requirements log, item 4  (document details)
Date submitted: 23 May 2003
Submitter: Original authors group
Description:
BPEL only supports the invocation of a single web service within an invoke activity. In many situations it is required that a particular invoke activity results in the creation of many activity instances where the number of instances is not know at design time but is calculated at runtime from the contents of a set of data or references. All instances are carried out in parallel and must be synchronized for completion of the activity. Typical example for this type of processing is the sending of a request to a number of services. Processing of such an activity includes fanning out the requests, collecting the results of the requests, and determining the overall (combined) result of the different requests.

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