Classification creates references to categories and other classifications of the economic resources and processes, and exchanges. The classifications can be a part of a taxonomy, flat list, tag set, faceted classification scheme, and any other structure desired. ValueFlows will not include the structures that the classifications are part of, and assume that is handled outside the VF scope.
Classifications can be created by user groups for themselves, or can be existing semantic structures, such as wikidata.
Haralson apple - https://www.wikidata.org/wiki/Q3127261 Honda Fit - https://www.wikidata.org/wiki/Q1135125 Transistor - https://www.wikidata.org/wiki/Q5339
Transport - https://www.wikidata.org/wiki/Q7590 Packaging - https://www.wikidata.org/wiki/Q29585952
Trade - https://www.wikidata.org/wiki/Q601401 Barter - https://www.wikidata.org/wiki/Q484830 Gift - https://www.wikidata.org/wiki/Q184303