Simon Willison’s Weblog

Controlled vocabularies

Christina Wodtke: Mind your phraseology!, a tutorial on controlled vocabularies. The concept is very similar to that used by TopicMaps—relationships are defined between terms that take in to account hierarchies, associated terms and even alternative spellings. I’m planning an overhaul of the category / metadata system used on this blog in the near future and Christina’s tutorial has given me a whole load of new ideas.