Three decades of Omaha System research: Providing the map to discover new directions

The Omaha System is a classification system or standardized terminology designed to enhance practice, documentation, and information management. Fifty unique studies were identified that focused on the Omaha System's Problem Classification Scheme, the Intervention Scheme, and the Problem Rating Scale for Outcomes. A computerized search of the research literature used CINAHL, MEDLINE, and Dissertation Abstracts databases for the years 1982 to 2003 on the keyword, Omaha System. Nursing studies predominated and were organized into eight categories. Based on the review, recommendations were made for future Omaha System research.