It is system-wide management of entire logistics chain as a single entity, instead of separate management of individual logistical functions.
Integrated Logistics Support (ILS) is the management and technical process through which supportability and logistic support considerations are integrated into the design of a system or equipment and taken into account throughout its life cycle. It is the process by which all elements of logistic support are planned, acquired, tested, and provided in a timely and cost-effective manner.