Just in Time management is focused on efficiency, whereas, lean management concentrates on using efficiency to add more value to the customers. Management helps in the achievement of goals, optimum utilization of resources, lessens the cost, establishes a sound organization, provides essentials for the prosperity of the organization along with the society, thus, benefiting every aspect of an organization.

Supply Chain 4.0 – the utilization of the Internet of Things, the utilization of advanced robotics, and the use of advanced analytics of big data in supply chain management: place sensors in all things, make networks all over, robotize anything, and break down everything to fundamentally improve execution and consumer loyalty.

Lean methodologies are lean since they empower a business to accomplish more with less. A lean association utilizes less human effort, less equipment, less office space, less time, and less capital- while continually coming nearer to meeting clients’ accurate necessities. 5 keys lean principles are:
Value
Value stream
Flow
Pull 
Perfection