+------------------+ +----------------------+ | +----org_siteOf---->| +-----------------------------------+ | Location | | Agent | | | |<---gr_hasPOS------| (provider) | holds +------------------+ | |<--------heldBy--------------+ | ^ +------------------+---+ | | | ^ | | | | | service_provides | | | | | | | gr_availableAtorFrom service_providedBy | | | | | | | | | | v daia_availableFor / | v | +----+--------------------+ daia_unavailableFor +--+----------+ +----------------------------+ |<-----------------------+ |<----------------------+ +--------------------------------+ dso_DocumentService | | Item | | | +-------------->| +----------------------->| +------+ exemplar | | +----------------+--------+ daia_availableOf / +-------------+ | broaderExemplar | | ^ | ^ daia_unavailableOf exemplarOf narrowerExemplar | | | | | broaderExemplarOf | service_limitedBy service_limits service_consumes | +--------------------------------------+ narrowerExemplarOf | | | | | dso_hasService | | | | | | service_consumedBy +--------+------+ | | v | | | | Document |<--+ | +---------------------+-----+ | v | | | | | +--+-----------+----+ | +--------------------+ | service_ServiceLimitation | | Agent | +---------------+ | | | (consumer) | +---------------------------+ +-------------------+