Anything with an input that is transformed into something else representing the output is defined as a process (see Figure 4.1). A process can also be information that is transformed into a different output by a particular input.
Figure 4.1 Process definition. (Source: BIG Training Materials.)
Batching systems and processes and their resulting variations are the hidden enemies of Lean thinking. It is this batching mindset that makes sustaining the one-piece flow (OPF) philosophy so difficult.
Batching systems are also known as push systems. This ...