XML is taking over the world as we know it, having become the foundation for almost all of today’s Web services and most service-oriented architectures. XML is not a technology per se; it’s a programming language that supports developers devising their own custom tags for Web information. This allows that information to be shared by XML-aware applications that can interpret the tags and organize the data accordingly.

Recently, we’ve seen a spate of watershed XML-related events:

• Microsoft announced the next version of Microsoft Office, code-named Office 12, will have XML as its native file format. Say goodbye to .ppt, .doc and .xls. These “default” XML file formats are designed as an extension of the Word­pro­cess­ingML and SpreadsheetML schemas and will be interoperable with the binary formats of Office 2000 and later.
• Intel bought start-up Sarvega, an early proponent of XML switching. Sarvega created its own operating system for efficiently processing, accelerating, securing and maintaining XML traffic. This acquisition will bring the power of Sarvega’s XML heritage to Intel’s product line. This XML overlay will transform the processing of XML traffic at its most basic and fundamental level.
• Cisco launched its Application Oriented Networking (AON) platform in June.  AON is a real application switching platform in that it not only supports XML, but also non-XML network applications such as database applications, voice, video, file sharing and instant messaging.
• Companies such as Datapower and Reactivity continue to stoke up wins with their XML appliance, network and software products. We’ve seen XML-aware products move from server appliances to server blades to software and soon to more basic levels.

People have always talked about how application switching is the natural evolution from XML switching, and that application switching ultimately will be swallowed up by the router makers. But actually getting to the point where the router makers are putting XML switching in their systems, Intel is building XML accelerating and securing software, and Microsoft is converting age-tested document formats to XML - this says XML switching has arrived, and you’d better take notice.

The problem with XML is finding out who owns this market. Look at the above examples, and you’ve got a WAN network player, a software player and a chip manufacturer all heading in a similar direction.