CIS (Clinical Information System) contains the OR, OB, ICU, ED and Ambulance demartmental information system. It has the HL7 interface to LIS, HIS and PACS ( the advance&future function). The basical characteristic is get the data comply with a particular time from Device, User and Other information system. In USA, Eclips, IDX(accquired by GE), Simens, etc. is the top CIS/HIS solution providers. some basic modules in CIS are FlowSheet, Pathway, ADT...It's a enterprise solution in an hospital.