Anne,
The Syzerpski test included “2. Is it
a unit of 3rd party consumption”, which you have indicated as SCA fails.
Please clarify/elaborate.
Cheers
G.
Gautham Kasinath
Masters Student
School of Computing and Information Science
Edith Cowan University
Mt. Lawley Campus
Perth
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-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Anne Thomas Manes
Sent: Wednesday, December 21, 2005
5:46 AM
To: [email protected]
Subject: Re:
[service-orientated-architecture] Re: Apache & Tuscany
SCA
does not define a model for creating services. It only defines a model for
composing services. From my perspective, therefore SCA does not qualify as a
component model. And based on the Syzerpski Test, it fails all three tests,
because it does not define units or unit deployment, only consumption of units.
Anne
On 12/20/05, jeffrschneider <[EMAIL PROTECTED]>
wrote:
>
But in reality, SCA is not a component model. The granularity of the
> "components" is different from any previous component model.
They are
> services -- not components. SCA is a services assembly model.
Anne,
If you use the 'Syzerpski Test' for components:
1. Is it a unit of independent deployment?
2. Is it a unit of 3rd party consumption
3. Does it have No externally observable state?
Where do you believe SCA fails the 'component' litmus test?
Also, you used the term 'granularity'; what kind of granularity are
you referring to: accounting, abstraction, analysis, compilation,
delivery, deployment, dispute, extension, fault containment,
instantiation, installation, loading, locality, mainteneance, system
management - or the old stand-by, INTERFACE?
Jeff
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