[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Re: [soa-rm] Architectural Scope of Reference Model
Duane: I accept that they are duals of each other. However, advertising suggests a producer-centric world view. Something that WallMart and GM might have something to say about. Also, in the limit case, opening a TCP port on a well-known machine might count as advertising -- to a port scanning bot. But I think that that is not what most people understand with the word advertising. We need a more neutral concept. The language of contracts may be helpful - tender, offer etc. Esp. since that fits well with the concept of a service contract. Frank On Apr 11, 2005, at 2:27 PM, Duane Nickull wrote: > Francis: > > Discovery is described in the WSA from W3C in section 2.3.3.1 very > well. > > "There are various means by which discovery can be performed. Various > things — human end users or agents — may initiate discovery. Requester > entities may find service descriptions during development for static > binding, or during execution for dynamic binding. For statically bound > requester agents, using discovery is optional, as the service > description might be obtained in other ways, such as being sent > directly from the provider entity to the requester entity, developed > collaboratively, or provided by a third party, such as a standards > body." > > For something to be discovered, it must first be in a format that > allows discovery to happen. That is the act of advertising it. > Discovery happens ONLY after something is available to be discovered. > > Duane > > Francis McCabe wrote: > >> Is discovery of the essence or advertising? If I discover how to use >> your service by some kind of reverse engineering -- you did not >> advertise it but I discovered it -- and can therefore use it! >> Frank > > > -- > *********** > Senior Standards Strategist - Adobe Systems, Inc. - > http://www.adobe.com > Vice Chair - UN/CEFACT Bureau Plenary - http://www.unece.org/cefact/ > Adobe Enterprise Developer Resources - > http://www.adobe.com/enterprise/developer/main.html > *********** >
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]