A role (also rôle or social role) is a set of connected behaviors, rights, obligations, beliefs, and norms as conceptualized by people in a social situation. It is an expected or free or continuously changing behavior and may have a given individual social status or social position. It is vital to both functionalist and interactionist understandings of society. Social role theory posits the following about social behavior: The division of labour in society takes the form of the interaction among heterogeneous specialized positions, we call roles. Social roles included appropriate and permitted forms of behavior and actions that recur in a group, guided by social norms, which are commonly known and hence determine the expectations for appropriate behavior in these roles, which further explains the position of a person in the society. Roles are occupied by individuals, who are called actors. When individuals approve of a social role (i.e., they consider the role legitimate and constructive), they will incur costs to conform to role norms, and will also incur costs to punish those who violate role norms. Changed conditions can render a social role outdated or illegitimate, in which case social pressures are likely to lead to role change. The anticipation of rewards and punishments, as well as the satisfaction of behaving pro-socially, account for why agents conform to role requirements. The notion of the role can be and is examined in the social sciences, specifically economics, sociology and organizational theory. Stanley Wasserman and Katherine Faust cautioned that "there is considerable disagreement among social scientists about the definitions of the related concepts of social position, social status, and social role." They note that while many scholars differentiate those terms, they can define those terms in a way that clashes with the definitions of another scholar; for example they state that "[Ralph] Linton uses the term 'status' in a way that is identical to our use of the term "position".