A pragmatic approach to SOA for the IT executive
by Girish Juneja, Blake Dournaee, Joe Natoli, and Steve Birkel

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Excerpt Description
In most healthcare organizations, a nurse uses multiple systems and devices while providing patient care. The nurse may switch from a patient management application for checking demographics and admission information to one or more electronic medical record (EMR) applications for viewing clinical notes on prior and current problems, to a charge collection application for ensuring correct billing, and to multiple ancillary systems for requesting an order. If the nurse does not have access to a system that supports contacting a patient’s physician or reviewing another organization’s clinical records, the nurse may need to complete these functions by phone or fax. These systems and activities support functions required to complete the overall care delivery process. In this example, however, nurses—not the system—orchestrate the various systems to support their work. The nurse is providing the interoperability.