HIMSS Word of the Day #375: System Testing
System testing is the phase of software testing in which a complete, integrated system is tested against its specified requirements as a black box. This post explains how it differs from unit, integration, and acceptance testing, and reviews three kinds of evidence on testing EHR safety: the SAFER Guides and the finding that eight organizations fully implemented only 18 percent of 140 recommendations, the 2025 revision of the Guides, and a study of 1,183 hospitals tested with simulated orders and patients.