Integration of Health Information Systems Using HL7: A Case Study.

Interoperability is a prerequisite for health information systems (HIS) that will reduce waste of unnecessary costs, errors, delays, and futile repetition. Many previous studies had proposed different approaches in the attempt to solve interoperability challenges. In this paper, we report our experiences in using Health Level 7 (HL7) standard and adopting the Common Gateway Model for exchanging heath data. The benefits and challenges of using standards for data interoperability are also described.