service execution context

Folks,

I have another question (which is, probably, 
not the right time to ask since the period of comments for 0.2 version is 
closed... but I will try):

I've just realised that the RA interprets 
'service execution context' from RM as "Within the RM, the 
execution context stood for all the aspects of an information system that 
are needed to facilitate interaction. A large part of the goals of the 
Reference Architecture is to show how interaction is realized". Plus, 
"Descriptions of the provider and consumer are the essential 
building blocks for establishing the execution context of an 
interaction." That is, it is a communication context. 

In another place: "The execution 
context can be thought of as a series of answers to the questions of 
why would the participants be willing to interact and whether such 
interaction is possible", i.e. one can assume that the context may 
include business conditions/context as a factor of willingness to interact. 
This corresponds to the references to the policies in the RM's 
definition (policies, which may apply as to the communication as to the 
execution on the provider side and be agreed in the Service Contract). 

I have read the RM's definition of the 
execution context as both - information AND business context of execution of the 
service rather than just communication information system context. For example, 
assume we have a service for calculating a fund price. We have corporate 
divisions in the US and in the UK working with different funds but in the 
same fund category. Besides different policies, the calculation method is 
different (in the business definition) in the US and the UK. That is, the 
service execution context from business perspective is different. So, before 
reusing the service even in the same information infrastructure, it is better 
to, at least, re-test it even if no one bit of its implementation is 
changed.

I think we have to clear state what is meant 
by  the service execution context in the RA. 

Cheers,

Michael Poulin

Head of Business Analysis and Web 
Architecture

Senior Manager, Web Delivery

Fidelity Investments International

' +44-173-783-6038
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