In: Statistics and Probability
Correct option is a.
The typical Kanban signal is an empty container designed to hold a standard quantity of materials or parts. The question asks for a definition. The option which describes the question is point a.
option d is wrong as Kanban act as communication devices from the point of use to the previous operation and as visual communication tools and not vice verca.
option c is wrong as The kanban system is a pull system. The push system is also more commonly known as Material Requirement Planning (MRP) based system. Hence kanban signal does not come from a MRP based system/push system. It comes from Pull system.
option b: Kanbans are used to eliminate or reduce the wastes through an organization due to the pull system that is employed. Wastes can come from inventory and hence there is the need for a stockroom. option b does not define what is kanban signal. Due to this reason, this cannot be the correct answer.