Phil Windley had a recent interview with Elias Torres and Ben Adida on RDFa. This is an emerging standard for adding semantic information to HTML documents. The “a” in RDFa stands for attributes. Rather than creating new documents, RDFa allows you to add RDF-like semantic information to your existing HTML pages via element attributes. A great deal of thought has gone into how to accomplish this without unwanted side effects such as changing how pages are rendered.
As I listened to the interview, I tried to think of how I would apply this to my web sites. There are standardized vocabularies for expressing friendship relationships, address and calendar information, audio file meta data, etc. However, little of this is relevant to my web sites. I’m ready to jump on the RDFa bandwagon once there are standard vocabularies more applicable to the kind of content I publish.
To learn more about RDFa, listen to Phil Windley’s podcast or read the RDFa primer.