Structural-functionalism is a prominent theoretical perspective in anthropology and sociology that views society as a complex system whose various parts work together to promote solidarity, stability, and the overall functioning of the social whole. It emerged in the early 20th century, with key proponents like Émile Durkheim, A.R. Radcliffe-Brown, and Bronislaw Malinowski.

One of the basic tenets is the concept of social structure. Structural-functionalists argue that society is composed of various social structures, which are relatively stable patterns of social behavior. These structures include institutions like the family, economy, political system, religion, and education. Each structure is seen as a distinct component that contributes to the larger societal framework.

A second core tenet is the idea of function. Every social structure or institution is believed to have a specific function or purpose that contributes to the maintenance and stability of the overall social system. These functions can be manifest (intended and recognized consequences) or latent (unintended and often unrecognized consequences). For example, the manifest function of education is to transmit knowledge and skills, while a latent function might be to foster social cohesion or provide childcare. The theory posits that if an institution exists, it must serve some vital function for the society.

Thirdly, structural-functionalism emphasizes interdependence. The different parts of society are not isolated but are interconnected and interdependent. A change in one social structure can have ripple effects throughout the entire system. This interconnectedness ensures that society operates as an integrated whole, much like the organs in a biological organism.

Another key principle is the tendency towards equilibrium and stability. Societies are seen as striving for a state of balance or equilibrium, where all parts are working harmoniously. Social change, from this perspective, is often viewed as a gradual process of adjustment that helps society maintain its stability and adapt to new conditions, rather than as a radical transformation. Deviance or dysfunction is seen as a temporary disruption that the system will eventually correct.

Finally, the theory highlights the importance of social cohesion and integration. Structural-functionalists are interested in how social institutions contribute to the solidarity and integration of individuals into a collective whole. Shared values, norms, and rituals, often reinforced by institutions like religion and family, are seen as crucial for maintaining social order and preventing anomie. In essence, structural-functionalism provides a framework for understanding how societies maintain themselves over time by examining the roles that various social structures play in meeting societal needs.