In the definition of sociotechnical systems, every organization is made up of a Âsocialsubsystem using tools, techniques and knowledge (the technical subsystem) to produce a product or service valued by the environmental subsystem. In this paper, we introduce sociotechnical systems and itÂs subsystems; then analysis the principles of sociotechnical systems theory. Three are central to the design and continued adaptation to change of STS organizations. These are joint causation, joint optimization, and joint design, all of which involve the organization embracing a holistic systems approach. Finally, we summary of sociotechnical systems Interventions.