Dennis I think thats an interesting point. In the Apache Synapse project we are trying to build an ESB that *fits* with RM, Sec, WSA in a seamless manner. One model we are supporting is a "transparent proxy" model, where we transparently support logging, monitoring and routing without changing the endpoints. So we'd like people to be able to add those functions in without tying any of the rest of the infra to any given ESB solution.
We are also trying to build a very simple clean config language where much of the transformation, routing etc is driven by standards (XSLT, XPath, Regex, JavaScript, E4X, etc) making it as little of a "tie-in" as possible. But I generally agree that over time we need to standardise the model and policy configuration of the ESB layer so its really open. Of course I think the Synapse model would be a great start for that :-) But I would. Paul On 6/27/06, Dennis Sosnoski <[EMAIL PROTECTED]> wrote: > Hi all, > > I'd like to find out how list members view the use of ESBs in SOA. Based > on what I've read and discussions I've had off list, I suspect a fair > number of people view an ESB as an essential component of a SOA. > > In my own talks on the topic I tell people that ESBs are especially good > for bridging legacy applications to a SOA. Beyond this, they can > certainly add a lot of value in the monitoring and control area. > However, I think there's been way too much marketing hype from the > vendors that conflates ESBs with SOA. Especially now that WS-Addressing, > WS-ReliableMessaging, and WS-AtomicTransactions are becoming standard > components of the SOAP stacks (and WS-Eventing is getting closer), the > value added to Web services by an ESB seems to me to be minimal for all > but the largest enterprises. > > The main drawback I see to using an ESB is that you're building your > enterprise around proprietary software. Even the open source ESBs all > have their own unique ways of configuring and managing services. The net > effect is that you're locked into a particular service bus and will find > it increasingly difficult to break free over time. > > How do other people feel about this? > > - Dennis > > -- > Dennis M. Sosnoski > SOA, Web Services, and XML > Training and Consulting > http://www.sosnoski.com - http://www.sosnoski.co.nz > Seattle, WA +1-425-296-6194 - Wellington, NZ +64-4-298-6117 > > > > > > > > Yahoo! Groups Links > > > > > > > -- Paul Fremantle VP/Technology, WSO2 and OASIS WS-RX TC Co-chair http://bloglines.com/blog/paulfremantle [EMAIL PROTECTED] "Oxygenating the Web Service Platform", www.wso2.com ------------------------ Yahoo! Groups Sponsor --------------------~--> See what's inside the new Yahoo! Groups email. http://us.click.yahoo.com/2pRQfA/bOaOAA/yQLSAA/NhFolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/service-orientated-architecture/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
