Aside from that, it's hard to find an industry or interest that isn't taking advantage of the fast-growing standard for Web services and data exchange. In the six years since the main XML specification was first published, it's spawned hundreds of dialects, or schemas, benefiting everyone from butchers to bulldozer operators wishing to easily exchange information electronically.
While some industry observers worry proliferation has gone too far, potentially creating new instances of the interoperability problems that XML was meant to solve, proponents say the explosion of schemas is a testament to the format's success.
Tim Bray, co-inventor of the main XML specification, said the proliferation of special-interest XML dialects validates what he and his colleagues set out to achieve.
"The idea from the start was to make it as easy as possible for people to come up with their own special languages for their specific problems," Bray said. "In the big picture, I think XML is more successful than any of us who designed ever thought it would be."