Systems theory (ST)

Systems Theory: the transdisciplinary study of the abstract organization of phenomena, independent of their substance, type, or spatial or temporal scale of existence. It investigates both the principles common to all complex entities, and the (usually mathematical) models which can be used to describe them.

 Systems theory focuses on complexity and interdependence. A system is composed of regularly interacting or interdependent groups of activities/parts that form whole.

 Part of systems theory, system dynamics is a method for understanding the dynamic behavior of complex systems. The basis of the method is the recognition that the structure of any system — the many circular, interlocking, sometimes time-delayed relationships among its components — is often just as important in determining its behavior as the individual components themselves. Examples are chaos theory and social dynamics.

SCM and ST

ST brings together various components of a complex supply chain (that is the human, capital, information, materials and financial resources etc.) to form a subsystem which is then part of a larger system of supply chains or network. The theory argues that for a holistic perspective ST must be employed to understand the internal and external factors that shape an organisation’s supply chain performance.