Dorothea Orem's Self Care Theory focuses on an individual's ability to care for themselves. Orem believed that people should be self-reliant and responsible for their own care. Her theory identifies three related concepts: self-care, self-care deficit, and nursing systems. The nursing process involves assessing a patient's self-care needs and abilities, diagnosing any self-care deficits, and designing a nursing system to compensate for or support the patient's self-care deficits. Orem's theory provides a framework for nursing practice, education, research, and administration. While comprehensive, it is limited by viewing health statically rather than dynamically.