To improve end-to-end flow, which should be identified and mapped?

To improve end-to-end flow, which should be identified and mapped?

• A. A spaghetti diagram of the work location
• B. the value stream
• C. customer requirements or the customer's voice
• D. the level of waste at each level of production

Answer: (B)

The key idea is to map the value stream. A value stream map shows every step from customer demand to delivery, including both material and information flows, and it distinguishes value-adding from non-value-adding activities. This end-to-end view highlights bottlenecks, handoffs, and delays, guiding where improvements will most effectively improve flow. A spaghetti diagram only traces physical movement in a single area and doesn’t capture the full end-to-end process or information flow. Capturing customer requirements is essential for defining what counts as value, but it doesn’t by itself map the flow of activities. Measuring waste levels helps diagnose performance but isn’t the mapping tool needed to improve the entire end-to-end process.

The key idea is to map the value stream. A value stream map shows every step from customer demand to delivery, including both material and information flows, and it distinguishes value-adding from non-value-adding activities. This end-to-end view highlights bottlenecks, handoffs, and delays, guiding where improvements will most effectively improve flow.

A spaghetti diagram only traces physical movement in a single area and doesn’t capture the full end-to-end process or information flow. Capturing customer requirements is essential for defining what counts as value, but it doesn’t by itself map the flow of activities. Measuring waste levels helps diagnose performance but isn’t the mapping tool needed to improve the entire end-to-end process.