There are a numerous of definitions of ”compliance”. Being a nurse, it's important to understand what it means to patients that we care for. As a phenomenon, it is complicated by the different perspectives of different disciplines. Nurses need to define compliance in a manner that best firs the philosophy of the nursing discipline. This article makes a distinction between the ordinary use and the scientific use of the term compliance. According to Walker and Avant's steps for concept analysis. there are more and different views clarified in this article. To act effectively in professional field, nurses the challenged to involve an interactive and transactional process which allows for patients' choice and control in decision making about carrying oat the prescribed behavior.