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Web Services - Are these for real?  RSS feed

 
Latha Kalaga
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I have recently come across an article on web services and it talks about some of the (im)practcal aspects of web services.
The article can be found at,Web Services: It's So Crazy, It Just Might Not Work
I am new to Web Services and trying to understand what they are. I read this article and I am even more
I have looked at some of the web services posted on XmlMethods. I seem to agree to some extent with the author of the above article that web services make sense where the terms, data and format is well understood by all the parties.
Any comments?
 
Tiger Scott
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Webservices are the new frontier. B2B is being enabled by it. They are here to stay and thrive.
Jump on it.
Sanjay
 
Latha Kalaga
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Thanks Sanjay for the response.
I understand the hype about web services. I just can not picture that consumers/businesses interfacing with 'web service providers' with out any prior negotiations on pricing, structure, and data format.
Also none of the information from UDDI or WSDL inform the consumer about the Quality of Service -- (availability, reliability, and security). This may cause a consumer to interface with a badly designed web service only to realize the mistake later.
My point is, there seems to be some gap exists between how a consumer interfaces with a 'service provider' as we eliminate the conventional way of doing business.
I am not sure if my concerns are all valid. Can someone please address these concerns.
Thanks,
Latha
 
Andy Rodriguez
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True , nothing as of today exists which can emulate x12 EDI , Edifact or anything coming close to this . Data format however is defacto. QoS is being worked upon and same with transactions (wsfl) and security issues , which is the main reason for skeptic press.
Originally posted by Latha Kalaga:
I just can not picture that consumers/businesses interfacing with 'web service providers' with out any prior negotiations on pricing, structure, and data format.
Also none of the information from UDDI or WSDL inform the consumer about the Quality of Service -
 
Doug Wang
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Andy,
I think ebXML may emulate x12 EDI , Edifact or come closest to them. For one of the sponsors of ebXML is UN/EDIFACT, a de jure standards body in the world, it integrates its vast experience in EDI standards into ebXML. So the best practices established for effective EDI apply to ebXML. Moreover, the primary objective of ebXML is to lower the barrier of entry to electronic business in order to facilitate trade, particularly with respect to SME.
Latha,
UDDI, including ebXML Reg/Rep, should provide company's profile, along with their data format, capability and key services, etc. Based on this profile, businesses can negotiate terms to reach an agreement(called CPA in ebXML), then conduct any business.

Doug
[ January 24, 2002: Message edited by: Doug Wang ]
 
Latha Kalaga
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Doug,
How is ebXml related to Web Services architecture? ebXml seems like some kind of standard specification between businesses to communicate with an intent to eventually replace (or provide an alternate) to EDI.
From ebXml Faq, it seems like a standard betwen a pre-determined companies (an example: RosettaNet, a consortium of more than 400 companies, plans to integrate support for the ebXML Messaging Services Specification in future releases of RosettaNet's Implementation Framework (RNIF) seems to tackle a specific vertical market space) as opposed to a consumer querying UDDI for a specific service with out being a member of any specific consortium.
Am I mis-understanding the intent of web services?
Any thoughts?
Thanks,
Latha
 
Doug Wang
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Originally posted by Latha Kalaga:
How is ebXml related to Web Services architecture? ebXml seems like some kind of standard specification between businesses to communicate with an intent to eventually replace (or provide an alternate) to EDI.

Yes, you are right. ebXML can provide an alternate to EDI to lower barrier of the entry to eBusiness. This article explains the relations between ebXML and web services very well.
From ebXml Faq, it seems like a standard betwen a pre-determined companies (an example: RosettaNet, a consortium of more than 400 companies, plans to integrate support for the ebXML Messaging Services Specification in future releases of RosettaNet's Implementation Framework (RNIF) seems to tackle a specific vertical market space) as opposed to a consumer querying UDDI for a specific service with out being a member of any specific consortium.

RosettaNet and other XML initiatives all intend to provide XML/EDI solution to a specific vertical industry(IT, automobile, etc.). But ebXML is the cloest intent to XML/EDI(also it is the most complicated one). So RossettaNet plans to integrate support for the ebXML Messaging Services Specification in future releases, and HL7 ......

Doug
[ January 24, 2002: Message edited by: Doug Wang ]
 
Roy Huang
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Thanks for the link offered by Latha,
it's a agood article. We have to admit that currently the web service gives us a big picture-- majorly because: IBM/MS/SUN/Oracle these giants support & promote it.
But in the reality, it is far too less than it is promoted. It leaves a lot of work for its higher level to solve / or to reach its interoperability. (Like WSFL interaction & ebXML), anyway these unclear or developing standard will finally decide the lifetime of web service -- whether it is only one fast method to solve easy interoperability problem or it is really a new generation/standard for the distribution system.
We have to wait and with patience.
Roy
 
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