Summary
Objectives: To describe the evolution of a provider order entry system with integrated decision
support, from a research prototype to full implementation at one academic center,
and finally to a commercial product.
Methods: Describe the institutional environment and planning process in which the system originated.
Highlight the historical evolution of the provider entry system, and analyze its system
architecture and functionality. Describe the requirements for successful design and
deployment both within a single health care organization and as part of a commercial
product line.
Results: Over a period of eight years the system evolved from a research prototype to a fully
integrated order entry system in routine use on most inpatient units of a large academic
medical center. Around 12,000 orders are entered every day into the computer system;
70% of those are entered directly by the responsible physician. The system embeds
best-of-care practice guidelines, and is used to reduce resource utilization by limiting
unnecessary testing and suggesting more effective or less costly therapeutic replacements.
The system was recently acquired by a large HIS software vendor and is being rapidly
implemented at numerous customer sites.
Conclusions: Large-scale development or deployment of complex health information systems requires
considerable organizational agreement and resources, as well as close attention to
iterative system design that explicitly includes constant feedback from the user community.
The transformation of such a system from a single-site success to a widely deployed
product requires convergence of resources and needs.
Keywords
Clinical information systems - provider order entry with decision support - user-driven
software design