Coordination (motor control) is the process by which the central nervous system organizes and integrates the activity of multiple muscles, joints, and sensory inputs to produce smooth, efficient, and goal-directed movements. Within the domain of motor development, this concept describes the acquisition and refinement of the spatiotemporal patterns of muscle activation and joint motion necessary for successful action over the lifespan. Drawing an analogy from system of systems engineering, motor coordination can be understood as the complex interaction and synchronization of various physiological subsystems (neural, muscular, skeletal) to achieve emergent functional capabilities, where the performance of the overall motor system depends on the orchestrated behavior of its constituent parts. This concept is fundamental to understanding skilled motor performance, motor learning, and the adaptability of the neuromuscular system in responding to task demands and environmental constraints.