Abstract: Healthcare is so interesting for our society. Generally Hospital Management Information System(HMIS) is a computer-based system that has the ability to coordinate all information for enable healthcare providers to do their works effectively and efficiently. According to using these systems across the globe, this requires a strong need to understand such systems and its capabilities. This work conducts investigation study about hospital management information system encompasses historic view of the system and its evolution stage, the most important functionalities services , stakeholder of such systems ,components of HIS, three layer graphic based model(3LGM), architecture design style of HIS and standard communication of HIS. This work will give a comprehensive picture to the reader about available HMIS.

Keywords: Hospital Information System (HIS), Health Management, Heath level 7(HL7), 3LGM.