Dr. Rogers presented her evolutionary model in 1970 with the publication of An Introduction to the Theoretical Basis of Nursing. This view presented a drastic but attractive way of viewing human interaction and the nursing process. Her concepts are derived from the view of the universe as a collection of open systems of which we interact independently and continuously without causality. In order to understand the Rogerian framework a set of definitions must be defined as a building block for the larger abstract system. Energy Energy is irreducible, indivisible and has a definable pattern.
Energy is the continuous interaction between a person with the environment.
Each individual has their own degree, identity and intensity of interaction with the environment. The combined energy between individual and environment is inseparable and integrated completely. Openness Both human and environmental systems are open. Change affects both systems mutually. People today are different then they had been the day before and can never return to the person they were.