The evolution of definitions for nursing informatics: a critical analysis and revised definition.

Despite the fact that nursing informatics is entering its third decade as a specialty within nursing, many definitions still exist to describe the field. This paper offers a rationale for a definition for nursing informatics and a critical analysis of past definitions. An organizing framework of technology-oriented, conceptual, and role-oriented definitions is used to critique these definitions. Subsequently, a revised definition is proposed. This evolutionary definition integrates critical concepts from past work and adds components that are currently missing--patients, information communication, information structures, and decision making. A separate role specification for informatics nurse specialists is provided.