Virginia Henderson developed her theory of nursing by defining nursing as assisting individuals with 14 components of basic care to maintain health or recover independence. Her theory focuses on the individual's needs within their environment. She views the nurse as temporarily substituting for patients' abilities until they can perform tasks on their own. Henderson sees nursing as a scientific problem-solving process carried out through assessment, diagnosis, planning, implementation, and evaluation. While her theory provided a framework for the nursing process, it had limitations regarding linking physiological concepts and unclear relationships between components of care.