In a value stream map, what does the thin straight directional arrow represent?

In a value stream map, the thin straight directional arrow signifies the manual information flow. This element is crucial in visualizing how information is communicated throughout the process. It represents the movement of information that may not have a formalized structure or automation, indicating that communication depends on human interaction.

Understanding this aspect is essential because it highlights the often-overlooked side of process management—how people share data, decisions, and updates during production. Mapping out manual information flow helps identify potential bottlenecks or delays that may arise from reliance on manual communication methods, and it emphasizes opportunities for improvement in the flow of information, which is vital in Six Sigma and Lean practices.

On the other hand, choices related to production flow, pull systems, and Kanban signals pertain to physical movement and control mechanisms in manufacturing processes rather than descriptors of information sharing.