Through personal experience, “her ideas evolved from observations in practice, with formalization resulting from her extensive reading and self-reflection” (Hartweg, 1991, p. 5 ). Identifies the scope and boundaries of nursing as both an art and a science. Empirical evidence supports Orem's assertion that nurses contribute to “maintaining health, preventing disease and disability, and restoring or maintaining life processes,” overcoming “the human limitations associated with health for engaging in the care of self or of the non-self-sufficient person” (Orem, 2001, p. 81). Provides ideas that guide the focus of nursing in the healthcare institution, including the scope of nursing services, characteristics of nursing staff, nursing service settings, management strategies, and administrative policies. Many research and practice tools have been derived from his self-care framework (Fawcett & Madeya, 2013). In his theory he describes all four concepts of the nursing metaparadigm with the utmost concern and emphasis on the person. In Orem's theory the person is the human being, defined as a biological, psychological, social being with the capacity for self-care. The environment is the means through which the person moves and the nursing metaparadigm is assistance in self-care activities to help the client achieve health, health being the person's ability to live