From: Ken Laskey
Sent: Tuesday, December 06, 2005
To: Duane Nickull; Goran Zugic;
Matt MacKenzie; MATHEWS, Tim; Sally St. Amand; firstname.lastname@example.org
Subject: RE: [soa-rm] Proposal:
Reorganization of SOA-RM Draft for Better
I think we need to add some words to the RM to capture this
discussion. We cover part of this in the beginning of Section 3.2.1 but
need to be more specific that:
- a service consumer can be a human or a software agent;
DN: given that we have scoped the RM for
SOA to software architecture and it is abstract, is this correct and relevant?
How can a human interface with a SOAP node? Since a human actor that
invokes a service by using a SOAP client is invisible to the service tier, it
is probably not correct or relevant as worded. I think I know what you
are trying to say though.
- a service consumer can invoke any number of services (including a single
service in isolation) and can chain the output of some services to act as the
input of others;
DN: save this thought for RA.
- from the perspective of a given service, the occurrence of such chaining
would not be visible;
- the service consumer can be implementing a business process;
DN: or an unbounded array of other
- the specific of a business process do not change the basic SOA concepts as
described in the RM; however, the specific architecture that one designs and
implements will reflect the business process and make use of specific service
instances that corresponds to the real world effects that the business process
hopes to realize.
Now that said, and in full appreciation that we agreed earlier that mechanisms
which combine services (e.g. choreography, orchestration) are out of scope, is
it sufficient for words, such as those suggested above, to be included
somewhere within the current discussion or do we need to pull it out into a
subsection on its own? As an example of the former, we tried to deal with
loose-coupling and coarse-grained with words at the end of Section 2.1.
DN: We used to have such words.
Are they out of the doc now?