Re: SPAM-LOW: Re: [soa-rm] Requesters vs. Consumers

[john c hardin <john@crossconnections.ws>]

A consumer recipient of a 'push' is still a consumer, even though it hasn't 
invoked or requested a service at the time of delivery. Obviously at some point 
it has opted-in to the subscription, but not necessarily at the time of delivery.

<the lurker speaks...>

lots of traffic on this list right now... very good stuff
john hardin

Matthew MacKenzie wrote:
> Same problem.
> 
> You can consume a service without specifically invoking it.
> -Matt
> 
> Chiusano Joseph wrote:
> 
>> How about "Service Invokers"?
>>
>> Kind Regards,
>> Joseph Chiusano
>> Booz Allen Hamilton
>> Visit us online@ http://www.boozallen.com
>>
>>
>>  
>>
>>> -----Original Message-----
>>> From: Matthew MacKenzie [mailto:mattm@adobe.com] Sent: Thursday, 
>>> March 31, 2005 9:19 PM
>>> To: Thomas Erl
>>> Cc: soa-rm@lists.oasis-open.org
>>> Subject: Re: [soa-rm] Requesters vs. Consumers
>>>
>>> Consistency with other work aside, "request" strongly suggests how 
>>> service consumption is initiated, and that is why I don't want to use 
>>> it.
>>>
>>> Regards,
>>> Matt
>>> Thomas Erl wrote:
>>>
>>>   
>>>
>>>> It's probably a good time to think about which term we     
>>>
>>> should use to   
>>>
>>>> represent the potential element responsible for invoking or     
>>>
>>> initiating   
>>>
>>>> a conversation with a service acting as the service provider.
>>>> Regardless of whether this becomes an "official" element within our 
>>>> reference model, we will likely need to reference such an     
>>>
>>> element in   
>>>
>>>> our documentation.
>>>>
>>>> Below are some considerations we can take into account:
>>>>
>>>> - Both of the position papers submitted so far incorporate the term 
>>>> "consumer". This term is also used in the ebSOA specification.
>>>>
>>>> - The W3C Web Services Architecture document submitted by     
>>>
>>> Frank McCabe   
>>>
>>>> uses the term "requester" and further qualifies it by suffixing it 
>>>> with "entity" or "agent" to represent the owner and     
>>>
>>> software program   
>>>
>>>> respectively. (Prior to the current version of the W3C     
>>>
>>> Working Note,   
>>>
>>>> this document used the term "service requester" instead of     
>>>
>>> "requester
>>>   
>>>
>>>> agent".)
>>>>
>>>> - The W3C Web Services Glossary does not provide a definition for 
>>>> "consumer", but defines "requester agent" as follows: "A software 
>>>> agent that wishes to interact with a provider agent in order to 
>>>> request that a task be performed on behalf of its owner - the 
>>>> requester entity."
>>>>
>>>> - The term "requester agent" is used in the W3C WSDL 2.0 
>>>> specification, whereas "consumer" is used in the WSDL 1.1 version.
>>>>
>>>> - The definitions document submitted by Rebekah uses the term 
>>>> "requester", most likely because the initial set of     
>>>
>>> definitions were   
>>>
>>>> provided by Frank.
>>>>
>>>> Given that we are seeking industry-wide acceptance of our reference 
>>>> model, there may be a benefit to keeping our terminology in     
>>>
>>> alignment   
>>>
>>>> with terms already in use by established (albeit
>>>> implementation-specific) specifications. I personally have no 
>>>> preference, but I do recommend we decide on one term and     
>>>
>>> then consider   
>>>
>>>> adding a definition to our glossary. We may want to     
>>>
>>> leverage some of   
>>>
>>>> the work performed by the W3C Working Group and decide     
>>>
>>> whether we also   
>>>
>>>> need separate terms to distinguish owner from implementation.
>>>>
>>>> On a related note, we have not yet discussed the concept of     
>>>
>>> a service   
>>>
>>>> or service agent assuming provider and requester/consumer     
>>>
>>> roles. Such   
>>>
>>>> a concept would also affect our definitions.
>>>>
>>>> Thomas
>>>>
>>>>
>>>>     
>>>
>>>   
> 
> 
> 
> 

-- 
~~~~~~~~~
john c hardin
CIO - http://crossconnections.ws
Director - http://www.sanghainteractive.com
313.279.1377 new *VONAGE* number
313.930.5323 cell
mailto:john@crossconnections.ws

"The new electronic interdependence recreates the world in the image of a global 
village."

     Marshall McLuhan, "Gutenberg Galaxy", 1962