This comes from the ethics of society and of social performance. Parson (1951, p.35), have pointed that "people act on the basis of their values, their actions are constrained by the values and norms around them, and these norms and values are the basis of social order." Thus, Parsonian theory is possibly best understood as an infinite classification system, enabling individuals to categorize level of social life at any level of analysis.
Moreover, Parsons expanded the classical theory on the idea of social system action. Most of Parsonian ideas focused mainly on large-scale components of norms, values with integration of individual action preoccupied with rules and ideals central in social system. Parsons also argued that, Durkheim's classical theory of functionalism could be seen as principle theory of action; conceive of people as making selections between resources and earnings in a physical and societal environment, which comprises inadequate selections. In fact, the significant aspects of shared environment is where the rules and ideals by which people making alterations, actors targets at extreme satisfaction, with behavior that achieved end and become entrenched into a system of status. Parsons (1951, p.137), stated that, "social action is performed by an actor either as an individual, a group or from meaningful intentions and implement equilibrium," such as education, find means to attain goal, dealing with hindering conditions (crisis) and actors must work with the social system (rules). Thus, Parsons further expanded on the idea that is adaptability to environmental changes and was indeed life-threatening to survival.
Furthermore, Parsons's structural functionalism is best understood as a pivotal classificatory system, allowing us to classify shared life at different level of examination. There are activities, social affairs and the structures according to what Parsons called pattern of variables.