The feasibility of implementing an electronic prescribing decision support system: a case study of an Australian public hospital.

Medication errors are common in public hospitals, with the majority at the prescribing stage of the medication pathway. Electronic prescribing decision support (EPDS) is a rules-based computer system that can be used by clinicians to warn against such errors to improve patient safety and support staff workflows. Despite its apparent advantages, this technology has not been widely adopted in Australian public hospitals for inpatient prescribing. A case study using Sauer's (1993) Triangle of Dependencies Model was conducted in 2003 into the feasibility of implementing an EPDS system at an Australian public hospital in New South Wales. It was found not feasible to implement an EPDS at the hospital studied due to the legacy patient administration system, low availability of information technology on the wards, differing stakeholder views, legislation, and the Independent Pricing and Regulatory Tribunal of NSW report recommendations. A statewide standard was preferred, with an agreed specification framework identifying basic core data items and functions that an EPDS must meet which can then be used by area health services to: (i) choose a solution which best meets their contextual needs; and (ii) engage vendors to tender for building an open source (non-proprietary) system based on the specification framework.