Validating nursing theory for use within a computerized nursing information system

Computerized nursing information systems (CNISs) exemplify the application of computer science to nursing knowledge. For nursing knowledge to be a basis for CNIS development, variable relationships must be clearly defined, thus allowing transformation of data into knowledge. Nursing theories define variable relationships; these definitions, however, often are not specific enough on which to base data-based nursing information systems. This article describes how a nursing process model was derived from Self-Care Deficit Nursing Theory, the process model validated, and data relationships established within the model prior to its use as a structure for a CNIS.