Many people need to tag text with these "bar codes" (uniquely identified entities).
This sort of thinking seems to be common in people who like the idea of the semantic Web but who are pessimistic about its implementation. I'm not sure it's going to be the case.
As we've seen happen with other technologies, I suspect we'll see a MetaWeb style approach of "deriving the barcodes" from existing and unformatted content. This will not be a 100% accurate process, but will be "good enough" to make the semantic Web a realistic and large scale underpinning to the next generation of search systems.
Deriving the ontology potentially has more value because it can help avoid spammers. If anyone can just assert that their content is of a specific type without any kind of verification, we end up with the meta tag keywords attribute all over again, where none of that data is trust-able.
This sort of thinking seems to be common in people who like the idea of the semantic Web but who are pessimistic about its implementation. I'm not sure it's going to be the case.
As we've seen happen with other technologies, I suspect we'll see a MetaWeb style approach of "deriving the barcodes" from existing and unformatted content. This will not be a 100% accurate process, but will be "good enough" to make the semantic Web a realistic and large scale underpinning to the next generation of search systems.