The evolution in digital knowledge management has been one of the steepest curves in human history and it continues at a staggering pace. The now ubiquitous [www] of the web has been popular for barely a dozen years, and the next fundamental revolution is already brewing.

Semantic technologies, leveraging the power of machine-readable, self-descriptive data and information collections, are set to transform the linked document network of today's internet into a richly interwoven knowledge network. By some estimates, the trend towards the "executable web" will be as profound as the disruption introduced by the first web.[1]