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cjh

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These are questions that were asked by the audience during the SOA in the Digital Age webinar on Developments in SOA. In some cases, answers were given during the webinar, but the number of questions was so great that the panellists could only address a few of them. The questions are posted in this thread so that anyone with views can comment.

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cjh

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­Definition of SOA

Can you give a formal definition of SOA?­ (Vipul Gupta­)

See http://www.opengroup.org/soa/source-book/soa/soa.htm

­ If somehow I have the service written without following any of the current recommended framework, where my service can still interact with multiple other services and returns the desired output, in this case can I say that the service is still SOA compl­iant? (Vivek Kumar­)

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cjh

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SOA and Enterprise Architecture

What are the differences between Enterprise Architect and Service Oriented Architecture? Any supporting document will be highly appreciated­. (Bhaskardeb Maitra)

See http://www.opengroup.org/soa/source-book/soa/soa_ea.htm

­Do you see significant difference from EA and Domain Architect viewpoint to Solution Architect/Project architect levels and is there any guidelines for various levels of IT staff from EA to developers and end-users?­ (Sundararajan Ramanathan)

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cjh

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SOA Style Maturity

­How do you see maturity of SOA architecture style evolve(or evolved) from Enterprise, Domain/Function and individual or a combination of Application Architecure? ­ (­Sundararajan Ramanathan­)

The Open Group Service Integration Maturity Model (OSIMM) is relevant to this, but does not provide a direct answer to the question. See http://www.opengroup.org/soa/source-book/osimmv2/index.htm

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cjh

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Governance

The governance is actual one of the biggest challenge (Hermann Speiser)

­How significant is buildtime and runtime service/api governance in the digital age where agility and quick time to market is the current demand?­ (­Ajay Behuria­)

Did he say: Cloud governance ?? How, if you are one of thousand clients of e.g. Salesforce? (Milan Beles)

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cjh

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Service Catalog

­Any commentary on API management and strategy?­ (Dan Janovjak­)

Where does xml schema repository fit into the SOA management landscape? Internal/external messages are the expressions of service contracts. (Tamer Sakr)

How can an organisation best describe and classify its SOA and MSA  (Catalogues/Lists) offerings?­ (­Tony O'Donnell­)

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cjh

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SOA and ITIL

You say SOA can be applied to application and infrastructure layers. Do you think it can be applied to the human layer? For example, is ITIL a form of SOA for the human layer? ­ (Paddy Baxter­)

­ITIL is a service governance framework :-)­ (Paddy Baxter­)

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cjh

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Greenfield Projects

You described the benefits of SOA for integrating proprietary solutions.  What benefits does an SOA bring to a Greenfield project?­ (­Steve Allan­)

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cjh

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Messaging Standards

Do you have a standard XML schema definition standard for message exchange within the travel industry? (Tony O'Donnell­)

The Open Group does not, but other bodies including the Open Travel Alliance (http://www.opentravel.org/) and the Hotel Next-Generation Consortium (http://www.htng.org/) produce such standards.

Would it not be best to follow ISO messaging & EDI standards? (Peter Royal)

EDI still alive somewhere? (Milan Beles)

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cjh

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SOA and Web Services

­SOA and web services complement each other, but they are not co-dependent.  You can have a SOA architecture without web services and visa-versa.  Would you comment on that?­ (­Tim Brown­)

­Can you discuss differences between Web API's and SOA?  (­Chad Foley­)­

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cjh

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SOAP and REST

Isn't REST used to develop http based SO-App? (Nazmul Alam)

How secure are REST sevices as opposed to SOAP? (Krishna Mohan Avasarala)

What advantage does RESTful offer me over SOAP? I still need to define and enforce interfaces and definitions (Enterprise situation - multi system, internal and external consumers and providers, high message security  including eCommerce).­ (­Paul Hawkins)­

­In Rest or In Soap, whenever there is a change or an update in the Input-Output message it required the change in the implementation area too.... Can this process be included in the soa governance, or can we have something in place which facilitate this ­type of change and montoring these type of changes ? (­Vivek Kumar­)

­What standards should I look to with RESTful­ (Paul Hawkins­)

Did he say: "use SOAP restfully" ?? (Milan Beles)

If you need to see examples of how to use REST SOAPly, see PeopleSoft delivered REST services. (Tamer Sakr)

@Mats: is that possible to use SOAP (=WS protocol) restfully (=no SOAP)? (Milan Beles)

Is that possible to use SOAP (=WS protocol) restfully (=no SOAP)?  -  Yes it is possible. (Vivek Kumar)

You can't implement SOAP in a RESTful way, however you can translate SOAP to REST in ESB enviorment. you can however write REST service as SOAP which I would not recommend. (Tamer Sakr)

For data representation I prefer REST.  For pure data exchange between systems I prefer SOAP. (Hermann Speiser)

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cjh

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HTTP Push

Do you see any move to adopt asynchronous HTTP push services, like Comet or websockets? (Derrick Lau)

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cjh

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­Tooling and Infrastructure

But tooling and infrastructure always plays catch-up for any technology, not only for SOA. So what's the news here?­ (Cesar Mercado)

One goal in SOA is to avoid transformation. Then why so much emphasize on ESB even today?­ (­Sumon Roy­)

­What are the best open source SOA tools available today?­ (­Maheswaran Natarajan­­)

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cjh

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Performance

What are the best practices to include in SOA for complex logic that is costing performance? (Sridhara Rao)

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cjh

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Business Process Management

­What is the panel's opinion of how Business Process Management suites and Enterprise Rules Engines have impacted the development of SOA­? (Rob Halleron­)

­How does BPM & SOA relate to each other and specifically in blueprinting an Enterprise?­ (Jay Bhuva­)

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