My first paying job in hospital-based software was the summer of 1969, working in the information technology (IT) department of the Lahey Clinic when they were still in Kenmore Square in Boston. One of my early projects was to help connect their accounts receivable system to their scheduling system. With the connection, a clerk could check to see if there were outstanding payments due from a patient trying to schedule an appointment. Since each module was initially built to stand on its own and not to coordinate with other modules, this was a bit of a challenge.
There is a creative tension that exists in the world of Hospital Information Systems, boiling down to two competing philosophies: (1) Best of Breed; and (2) Fully Integrated.
In the Best of Breed world, hospital departments choose what they consider to be the best offering in each category of software, and trust that their IT department can set up the necessary interfaces to obtain, use and disseminate the data used and created by that software. Hospital IT departments have gone to great length to establish an environment of interoperability, using the Health Level Seven (HL7) standards to provide a “comprehensive framework and related standards for the exchange, integration, sharing, and retrieval of electronic health information that supports clinical practice and the management, delivery and evaluation of health services” (see www.hl7.org).
In the Monolithic world, a single software vendor is selected to provide all of the necessary software for a hospital. Modules from the monolithic vendor are given preference over anything from a third party vendor, even if that vendor has a far superior offering for a given department or task. Closed proprietary standards and lack of interface connections help to perpetuate the locked-down model of such monolithic systems.
Since I first ventured into hospital-focused software in 1969, I have seen the landscape of Hospital Information Systems go through many changes. Every few years, the pendulum seems to swing between Best of Breed and Monolithic. Over the last several years, the Monolithic philosophy has been quite prevalent, but I now have a strong sense that the is beginning to swing again. There are many factors driving this, including but not limited to:
Open standards and interoperability. I guess what’s old is new again.
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