Serial and Parallel Entities

A line consists of a combination of serial and, optionally, parallel entities.

Parallel entities refer to a set of two or more entities that are at the same position in a production line. Each parallel entity can receive material from the same set of entities immediately before it in the production line or line segment, and can send material to the same set of entities immediately after it in the production line or line segment.

Serial entities do not have any other entities at the same position in the production line or line segment.