1.3 Communication as System Process

Communication as a system process treats communicative events not as isolated exchanges between individual senders and receivers but as ongoing processes embedded in larger organized wholes—systems composed of interdependent parts whose interactions produce emergent patterns, maintain boundaries, and pursue goals that no single component could achieve alone. This systemic perspective draws from general systems theory, cybernetics, and the sociology of complex organizations to analyze how communication constitutes, maintains, and transforms social systems.

Systems Theory and Communication

Ludwig von Bertalanffy's general systems theory (GST) introduced the concept of the open system—a system that exchanges matter, energy, and information with its environment—and distinguished it from the closed systems studied in classical thermodynamics. This distinction was consequential for communication: human social systems are paradigmatically open systems that continuously take in information from their environments, process it, and produce outputs that alter the environment in turn.

Key properties of systems relevant to communication include:

Wholeness: The system as a whole behaves differently from its isolated parts. A conversation is not reducible to the sum of individual utterances; a family is not reducible to the sum of its members' individual behaviors. Relationships, patterns, and emergent structures are irreducibly systemic.

Hierarchy: Systems are nested. Interpersonal conversations are embedded in relational systems; relational systems are embedded in organizational and institutional contexts; these are embedded in cultural and societal systems. Each level has its own dynamics, and communication at one level affects and is affected by dynamics at other levels.

Interdependence: Elements of the system are mutually dependent. A change in one component's communicative behavior ripples through the system. The silent member of a work group constrains what can be said by others; the noisy dissenter forces public restatements of positions that might otherwise remain implicit.

Boundaries: Systems maintain distinctions between inside and outside. Communication processes are central to boundary maintenance: what information is shared with whom, through what channels, under what conditions constitutes the system's boundary. Boundary-spanning communication—linking different subsystems or linking the system to its environment—is a critical function in organizations.

Negative entropy (negentropy): Open systems can maintain or increase their internal organization by importing information and energy from their environments. Communication is a primary mechanism of negative entropy in social systems: shared knowledge, coordinated action, and institutional memory all represent ordered states maintained through communicative processes.

Communication as the Constitutive Process of Social Systems

The most radical systemic claim, associated with Niklas Luhmann's social systems theory, is that communication is not a property of social systems but their constitutive element: social systems are made of communication, not of persons. Persons (psychic systems) participate in social systems by contributing communicative operations, but the system itself consists only of communications connected to other communications in a self-referential network.

On this view:

• Social systems are autopoietic: they produce the elements (communications) out of which they are composed by means of those very elements. Communication produces further communication.
• Systems operate with operational closure: a social system can only connect communication to communication; it cannot directly process the thoughts of the persons who participate in it. The boundary between the system and its environment is maintained by the distinction between what counts as a communication within the system and what does not.
• Meaning is the medium of social systems: all social communication operates through the selection and differentiation of meaning from a horizon of possibilities.

While Luhmann's radical version is contested, the constitutive claim—that communication constitutes social realities rather than merely reflecting pre-existing ones—is widely influential across organizational communication, sociology of knowledge, and the communication-as-constitutive-of-organization (CCO) tradition.

The Communication System: Inputs, Throughput, Outputs

A more conventional systems model analyzes communication as a process of transformation:

Inputs to a communication system include messages, background knowledge, relational history, channel affordances, and contextual constraints.

Throughput refers to the processes through which inputs are transformed: encoding, transmission, reception, decoding, interpretation, feedback generation.

Outputs include understood messages, changed attitudes or beliefs, modified behaviors, relational states, and institutional decisions.

Feedback loops connect outputs back to inputs, enabling the system to adjust and self-regulate.

This model can be applied at any scale: a single utterance and its response, a debate between two parties, an organization's internal communication infrastructure, or a society's public communication system.

Communication and System Maintenance

A central function of communication in social systems is system maintenance—the reproduction of patterns, norms, roles, and structures that constitute the system's identity over time. This maintenance occurs through:

Ritualized communication: Greetings, ceremonial language, and repeated interactional patterns signal and reinforce membership, hierarchy, and shared values. They function as regular "heartbeat" communications that confirm the system's ongoing existence.

Institutional discourse: Organizations and institutions reproduce themselves through standardized communicative genres—memos, reports, announcements, performance reviews—whose formal properties signal the continuity of established structures.

Socialization: New members are incorporated into a system through deliberate communicative processes that transmit norms, values, and role expectations.

Deviation-correction: When communicative acts deviate from established norms, corrective mechanisms—criticism, sanctions, renegotiation—restore the system to its characteristic pattern.

Communication and System Change

Systems change when communication disrupts rather than reproduces existing patterns. Change-enabling communication may occur through:

Amplifying feedback: Communication that reinforces a deviation from the norm, driving the system toward a new state. A whistleblower, a viral critique, or an organizational champion can amplify a small perturbation into a system-wide transformation.

Import of environmental information: When external information is systematically incorporated into the system's processing—new regulatory requirements, competitive intelligence, consumer feedback—it can trigger adaptive reorganization.

Boundary redefinition: Changes in what counts as a legitimate communication within a system—who may speak, about what, in what form—can fundamentally reorganize the system's structure and capacity.

Communication Networks as System Structure

The relational structure of communication within a system—who talks to whom, through what channels, with what frequency and content—constitutes the system's communication network. Network analysis maps these structures and identifies:

• Centrality: nodes (individuals, units) that occupy central positions in the information flow are critical for system coordination and are disproportionately influential.
• Density: highly connected networks facilitate rapid information diffusion but may also promote conformity; sparse networks allow greater diversity but face coordination challenges.
• Weak ties: connections between otherwise disconnected subgroups carry novel information that dense clusters of strong ties cannot generate (Granovetter's insight).
• Structural holes: gaps between otherwise unconnected clusters that bridge actors can exploit to control information flow.

Emergence and Systemic Communication Effects

Communication systems exhibit emergent properties—collective outcomes that are not predictable from the properties of individual exchanges. Public opinion, collective intelligence, organizational culture, and social norms are emergent products of distributed communicative processes. Their systemic character means they cannot be fully explained by any individual actor's communicative contribution; they arise from the pattern of interactions across the system as a whole.

Understanding communication as a system process is thus essential for analyzing collective phenomena that exceed the explanatory reach of individualistic models and for designing communicative interventions at the level of systems rather than isolated messages or speakers.