I’m usually careful to avoid
criticism in these types of lists, but I feel it necessary to point out the
question was, “What are the principles of SOA, not, “what are the
benefits of SOA” and not “what are the features”. If
your point was other than to criticize incorrectly, then it was lost in your
posting.
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of Vikas Deolaliker
Sent: Sunday, November 06, 2005
2:19 PM
To:
[email protected]
Subject: RE: [service-orientated-architecture]
Re: request for pointers to relevant information/documentation about SOA/SOC
I think the features and benefits of SOA
are mixed up in this list.
If you have addressable, named,
discoverable and distributed services then you will get the benefits of loosely
coupling which include contracts based computing and SLA
based management.
Vikas
From: [email protected]
[mailto:[email protected]]
On Behalf Of JP Morgenthal
Sent: Saturday, November 05, 2005
5:21 PM
To: [email protected]
Subject: RE:
[service-orientated-architecture] Re: request for pointers to relevant
information/documentation about SOA/SOC
Here's what I propose:
A) Loose-coupling -
every service is atomic, self-describing,
accessible, declarative, stateless and composite
B) Contracted - All
services in an SOA are represented by a contract
that describes its inputs, outputs, access
policies, QoS requirements and
error handling procedures
C) Manageable - all
services can be individually managed or managed
as a group
D) Versioned -
multiple versions of the same service should be able
to co-exist to maintain backward compatibility in
a changing environment
E) Discoverable -
services should be able to be discoverable at time
of execution.
F) Addressable - A
service should be able to be uniquely identified
in a network
G) Distributed -
Services in an SOA are separated by geographic and
machine boundaries and, therefore, must be good
netizen applications. That
is, they must be developed with the ability to
recover from loss of
communications.
H) Point-to-Point -
At any point in time one consumer uses one and
only one producer
------------------------------------
Avorcor, Inc.
JP Morgenthal
Managing Partner
[EMAIL PROTECTED]
12110
Sunset Hills Road, Suite 450
Reston, VA 20190
tel: (703) 648-1520
fax: (703) 648-1523
mobile: (703) 554-5301
------------------------------------
-----Original Message-----
From: [email protected]
[mailto:[email protected]]
On Behalf Of Jan
Algermissen
Sent: Saturday, November 05, 2005 9:03 AM
To: [email protected]
Subject: Re: [service-orientated-architecture] Re:
request for pointers to
relevant information/documentation about SOA/SOC
>>
>> documents/publications related to SOA,
starting from the basic
>> principles to more complicated stuff.
I know this has propably been stressed too much,
but simply cannot
resist :o)
What are the basic principles of SOA?
<duck/>
Jan
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