Re: [soa-rm-ra] Views and viewpoints

[Danny Thornton <danny_thornton2@yahoo.com>]

I'm looking at the RA from a business process
perspective and wondering how "Relationship Between
Services" changes for the new views/models.  Does this
section become the Service Composition and
Choreography model under the Service view?  

There is also the Business Processes model under the
Service as Business view that we currently do not have
defined in the RA.  If I want to relate an
implementation that uses Business Process Modeling
Notation (BPMN) to the SOA RA, I think this would be
extensions of the Service Composition and Choreography
model and the Business Processes model.  Any thoughts?

Danny

--- Francis McCabe <frankmccabe@mac.com> wrote:

> We had a discussion about formalizing a views and
> viewpoints in the  
> face to face; and we had another discussion on the
> matter during  
> today's telcon.
> 
> In order for this approach to make sense, it is
> important to have the  
> right number of views; too many and it becomes
> unwieldy, too few and  
> it becomes less useful.
> 
>  From this point of view (sic), we identified the
> following major  
> views of the RA. The titles of these views are
> intended to be  
> suggestive of the viewpoint; but are not cast in
> stone.
> 
> ServiceAsBusiness view
>    "How are business needs met using SOA?" is the
> key question.
>    Models in this view would fold existing sections:
> 
>    Needs and capabilities
>    Participants
>    Real World Effect
>    Business Processes
> 
> Service view
>    "What are services, what support is needed and
> how are they  
> realized?"
>    Models in this view would consist of:
> 
>    Service Description
>    Service Visibility
>    Interacting with services
>    Service Transactions
>    Service Composition and Choreography
> 
> Security in SOA
>    "How can we be assured of the safety of using
> services?"
>    Models in this view would include
> 
>    Security Threats
>    Security policies
>    Trust model
>    Security enforcement
> 
> Deployment of SOA
>    "What does it take to deploy SOAs?"
>    This view would include the models:
> 
>    Management of services
>    Governance in SOA
>    Compliance
>    Testing models for SOAs
> 
> Policies and Contracts
>    "How do people express constraints in an SOA
> context?"
>    In one reading, policies and contracts represents
> an important  
> infrastructural element that needs to be focused on.
> Policies and  
> contracts could be modeled in each of the views
> above, or in their  
> own view.
>     Specifically, we would model
> 
>    Policy and contract descriptions
>    Policy/contract enforcement
> 
> 
> We decided to open this discussion to the list
> before committing it  
> to the WIKI. Comments would be welcome.
> Frank
> 
> 
> 
> 
> 


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