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Misunderstanding: XQuery is not important in improving Service Oriented Architecture (SOA) performance and complexity

Software architects and developers are turning to XQuery to solve performance and complexity problems as the systems they build handle huge amounts of XML data. Consider the following scenarios and XQuery solutions:

• Early analysis shows XQuery plays an important roll where payload sizes and XML schema complexity in ebXML- and UBL-based services are exploding.
• XQuery greatly enhances UDDI solutions as it better manages and governs the resources listed in a UDDI registry.
• Software architects find slow-moving data caching is one way to accelerate SOA performance. In an analogous situation to Web page edge caching, services that receive many requests for the same information can use an XQuery engine to temporarily cache the XML data. XQuery implementations usually deliver both the XQuery scripting capability and a data persistence or storage facility. The service exposes the XQuery as a service and uses the underlying XQuery XML database to temporarily cache the XML data.

Additionally, in the supply chain application space, XQuery XML storage and retrieval has the potential to play an important role in accelerating overall system performance. Imagine the advantage XQuery-based XML storage and query functions can have in supply chain transactions where every product is tracked within the context of a business relationship that is described in an XML document.