An indicator that determines whether the "from", the "to" or both components of a Map or MapVersion are being queried. Restrict a query to address only the "from" side of a MapCatalogEntry or MapVersion. Restrict a query to address only the "to" side of a MapCatalogEntry or MapVersion. The query addresses both the "from" and "to" side of a map An indicator that determines whether all referencs... An entity is included in the "from" part of the map but does not appear in an MapEntry or it appars in the "to" part of the map but does not appear in the output of a MapRule An entity is included in the "from" part of the map and there is a MapEntry that references it but there the target set is empty. NOMAP references entities that have been explicitly declared to have no mapping An entity is included in the "from" part of the map and appears in a MapEntry or it appars in the "to" part of the map and appears in one or more MapRules. MAPPED includes NOMAP entities. The union of UNMAPPED and MAPPED entities - any entity that is a source or target of a map whether mentioned or not. A service that interprets and resolves maps