Subsystems Model

Subsystems Model Definition

The Subsystems Model, developed by Talcott Parsons, serves as a framework for understanding social systems by bridging the concepts of social action and the broader structure of society. This model posits that any social system is composed of specific combinations of choices across four fundamental pattern variables. Crucially, each social system possesses inherent needs arising from its interactions with its environment and internal workings, which must be satisfied to maintain equilibrium. Parsons identified four major subsystems, initially known by the acronym AGIL, which represent these essential functional requirements for any system.

The Four Subsystem Needs (AGIL)

The core of the model rests on four interdependent needs that any social system must fulfil: Adaptation, Goal Attainment, Integration, and Latency. These needs are the functional problems that systems face in relation to their environment and internal structure.

• Adaptation: This refers to the system’s requirement to acquire necessary resources from its external environment, which Parsons associated with concrete terms such as ‘the economy’.
• Goal Attainment: This involves the system’s need to define and pursue its overarching objectives, corresponding in practical terms to concepts like ‘polity’ or government structures.
• Integration: This concerns the necessity of maintaining internal order and cohesion within the system, manifested in concrete examples such as communities, associations, and organisations.
• Latency: This subsystem addresses the need for the system to generate sufficient motivation necessary for tasks to be successfully performed.

Application and Context

While the model is conceptually straightforward, its utility depends on how the relations between these analytical divisions are worked out in intricate detail. The Subsystems Model, derived from earlier work by Bales (1950) and Parsons’ functionalism (1953), provides a means to analyse how social systems cope with external demands and internal maintenance. The detailed examination of the relationships between these subsystems formed a significant part of Parsons’ systems-theoretic phase of functionalism.