Services-oriented architecture gains support

TalkBack 7 of 19:

Next »

« Previous

• Thread View
• Flat View

Doesn't relational belong in the DB tier?

This whole service orientated architecture stuff adds nothing new at all, only a means of describing and manipulating that is markedly less complete and less flexible than the relational model (ie XML).

Not sure what your gettin at other than you like relational technology. Isn't relational primarily a two tier model? SOA would basically be an n-tier model! You are free to use pure relational on the back end just hide the details at the interface to the consumer to increase reusibility options (at the sake of performance).

Say two companies want to participate in a supply chain application. Walmart let's say wants to interface to Sun. Let's say Sun is Oracle Relational based and Walmart uses the fancy Tamino XML DB. They will want to have a layer between their companies which insulates themselves both from each other and from future enhancements to their solutions. If they go pure relational a simple change in the schema has to be propagated out to all clients ... a maintenance problem. If they go with a "translation/intermediation" layer then they can upgrade the pieces which need it and leave the old pieces in place. Adds extra layers which slows some things down, but the layer can be reused by multiple presentation layers so it adds structure and lowers life-cycle costs.

From the article:

This concept of "loose coupling," in which applications automatically link to one another as needed, gives company data centers much more flexibility by allowing them to reuse integration code in different business processes. A developer could write a service to connect a supply chain to a sales application, and reuse that same integration service to feed data from the supply chain system to a Web portal application. With traditional middleware, each new connection would require significantly more coding, analysts said.

Posted by: oldskool   Posted on: 04/02/04 You are currently: a Guest | Members login | Terms of Use

Alert moderator to an offensive message

Subscribe to this discussion via Email or RSS

SponsoredWhite Papers, Webcasts, and Downloads

• The Impact of Virtualization Software on Operating Environments VMware Today's use of virtualization technology allows IT professionals to ... Download Now
• Building the Virtualized Enterprise with VMware Iinfrastructure VMware VMware virtualization software has been adopted by over 120,000 enterprise ... Download Now
• INNOV8 2.0: A Business Process Management Simulator IBM Innovate your business' process model, play against the market, compete ... Download Now