This is any resource whose capacity is less than the demand placed on it.

An organization's production system is the component that produces the organization's goods. It is the process of combining and transforming resources moving through a specified system in a regulated way to generate value in compliance with management policies.

A bottleneckis referred to as a resource that has less capacity when compared with the demand. A bottleneck is also known as a point of congestion in a production system that arises when workloads arrive at a rate that exceeds the capacity of the production process. Inefficiencies caused by the bottleneck usually result in delays and increased production costs.

The word "bottleneck" relates to a bottle's usual form and the fact that its neck is its narrowest point, making it the most probable destination for congestion, delaying the liquid flow from the bottle.