many-to-one adjective2 •Having the property that many elements of one set may be assigned by the relationship to one element in the other set, and that a given element in the first set can be assigned by only one member of the second set. •From many sources to a single recipient.Traditional management structure consisted of a hierarchical tree of many-to-one communications (from subordinate to manager), with each manager often significantly filtering what he passed on to his manager.