ZapNote: Autonomy
While a human can identify the similarity between XML tags such as "PO", "PurchaseOrder", and "PurchOrd", an automated system would identify them as differently as "green", "car", and "jump". To address these issues of meaning, or "semantics", Autonomy has developed a set of products that aim to simplify the process of context-aware categorization and tag-set matching. While not a "Semantic Web" technology in the strict sense, it plays in that general environment.