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Subject: Issue 61: proposal

At the end of section 3.1 Properties we add the following text:

The WS-BPEL specification requires that the variable initialization 
logic in scopes that contain (or whose children contain) a start 
activity use only idempotent functions in the from-spec. In an SCA 
WS-BPEL Runtime, variables associated with SCA properties and 
multi-valued reference are set by the runtime based on the configuration 
of the containing composite. Therefore, the idempotency is guaranteed 
only for a given SCA domain-level composite. The SCA Assembly 
specification allows for a variety of implementation including ones that 
allow dynamicity for the SCA domain-level composite. See Sections 
10.7.1, 10.7.2, 10.8 and 10.9. For such runtimes, the properties and 
muti-valued references may change with a change in the domain-level 



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