The cost and quantity of application interfaces at a typical hospital over time.

The cost and quantity of application interfaces at a typical hospital over time

Early clinical interfacing was very costly, and HL7 was formed to reduce the expense of building interfaces. The number of interfaces at a typical facility slowly grew during the 1980s and early 1990s. Since the late 1990s, interface counts have grown much more quickly and costs have declined, although more slightly since the early 200s.

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