Which term describes a system with relatively free movement of information, matter, and energy into and out of the system?

• A. Open System
• B. Closed System
• C. Isolated System
• D. Boundary System

Answer: (A)

Movement across boundaries is what defines an open system. In this view, the system constantly interacts with its surroundings, taking in inputs such as information, materials, and energy, processing them, and releasing outputs. This openness lets the system adapt through feedback and change, which is essential in settings like healthcare organizations that must respond to new data, patient needs, and environmental shifts.

A closed system, by contrast, restricts exchanges with its environment, keeping energy and matter mostly inside and relying on internal processes. An isolated system goes further, with essentially no exchange with the outside world—an idealized concept not seen in real life. A boundary system isn’t the label for openness itself; it refers to how boundaries regulate exchange but doesn’t describe the degree of interaction with the environment. So, the term that best fits a system with relatively free movement of information, matter, and energy into and out of it is open system.