Instructions and covered skills
Read each question carefully before selecting a response. Focus on the process facts, calculations, and relationships described in each scenario. Choose the response that most directly supports accurate value stream mapping and flow analysis. Do not rush through numerical details or labels used in the map. Stay focused on the stated process boundary and customer demand. Turn off notifications and work in a quiet setting when possible. Review your selections before submitting your responses.
Key Areas
This test evaluates the ability to use value stream mapping to understand how work, materials, and information move from a customer request through delivery. It covers defining an appropriate process family and map boundary, collecting observed process data, and interpreting common map elements such as process boxes, inventory triangles, information flows, shipment links, and customer or supplier icons. Candidates should be able to distinguish cycle time, changeover time, uptime, available working time, lead time, and value-added time.
It also assesses calculation and interpretation of takt time, capacity, inventory coverage, and process timing. Strong performance requires recognizing where a flow is constrained by long changeovers, unreliable equipment, uneven workload, batch release practices, excessive queues, or disconnected information signals. The test addresses waste visible in a value stream, including waiting, excess inventory, transportation, overproduction, rework, and unnecessary processing. Questions emphasize selecting actions that improve the flow indicated by the map rather than making isolated local changes.
Candidates should understand future-state design concepts, including continuous flow, pull replenishment, supermarkets, FIFO lanes, pacemaker processes, heijunka, and planned improvement bursts. They should be able to determine when these mechanisms fit the operating conditions shown and how they influence inventory, scheduling, and customer responsiveness. Clear interpretation of timelines and information paths is also important.
Recommended Preparation
Review completed current-state and future-state value stream maps from an operational setting such as fulfillment, service delivery, manufacturing, or administrative processing. Practice tracing one product or service family from customer demand through each handoff. Collect sample observations for cycle time, waiting time, queue size, uptime, and changeover time, then use those observations to calculate takt time and total lead time. Compare value-added time with total elapsed time to identify the largest sources of delay.
Practice translating map findings into targeted actions. For example, consider when a FIFO lane protects sequence, when a supermarket decouples processes, when continuous flow is feasible, and when a single scheduling point reduces conflicting priorities. Study how improvement bursts connect observed causes to owners and timing. Finally, verify that every proposed future-state change supports customer demand, stable flow, and a measurable reduction in waste.