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Subject: RE: [soa-rm-ra] participants, agents and actors
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Frank Thank you for the definitions. I will try to put these in the
security models I am working. Also, could Jeff or you send me the OMG document
or a link so I can compare definitions. Dave From: Francis McCabe
[mailto:frankmccabe@mac.com] Some definitions.... Stakeholder (no change) A
stakeholder is an individual entity, human or non-human, or organization of
entities that has an interest in the states of services and/or the outcomes of
service interactions Actor An actor is an entity that has goals and is
capable of action (i.e., applying intent to achieve a Real World Effect) Agent An agent is an actor that acts on behalf of
another entity. I.e., an agent can adopt one or more goals of another entity. Participant A participant is
a stakeholder that is acting in the context of a SOA-based system. A
participant is also an actor. The purpose of this would be to separate out
the concepts of having an interest in services, being active, and actually
doing things. Some examples: Stakeholder: Govt, Service providers, etc. Actor Software entities such as
security agents, publishing agents, service imlpementations Human service consumers Agent Proxy agent, mediator, broker,
software agent,... Participant Service consumer, provider, I am not sure if this ends up splitting a few
too many hairs. But on the other hand it also felt that the original terms were
getting too overloaded. Frank On Jul 17, 2008, at 7:05 AM, Jeffrey A. Estefan wrote:
Frank, Couple of quick questions: 1. Can you please provide the natural language definition of
Actor? 2. Are the current
definitions of Stakeholder and Participant and Agent to your satisfaction,
given this new entity of Actor and the associated visual model? How about
Service Consumer, Mediator, and Provider? 3. You show multiple inheritance from Stakeholder and Actor to
Participant. Is this what you meant to model? Maybe it will be a
little clearer when you provide the formal definition of Actor. Cheers... - Jeff |
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