A directed graph and a semantic ontology are simultaneously employed to enable tagging of data. Tags from the directed graph contain special properties linking them to a semantic ontology such that activating a node on the graph, will provide specific actions relating to one or more ontologies. Humans or machine executable algorithms can use the directed graph as a classification system, which enables a decision making process to occur, one step at a time. Such an approach enables complex problems sets to be broken down into smaller directed graph processes. Each process can then be either automated using computer executed algorithms, manual using humans, or a combination of both. In this way an n-tiered workflow system can be developed that enables large scale asynchronous and distributed tagging.
Tagonomy—a system and method of semantic web tagging