  A health information system (HIS) is the intersection of between healthcare's
business process, and information systems to deliver better healthcare
services. The nature of healthcare industry, which is highly influenced by
economic, social, politic, and technological factors, has changed over time.
This paper will address some important concepts of healthcare and related
terminologies to provide a holistic view for HIS. Related technological
milestones and major events are briefly summarized. The trends and rapid
development of health information technologies are also discussed.
