Which one of the following is an advantage of lean systems?

Question

BlackTom AI · Accepted Answer

To evaluate the advantages of lean systems, we need to consider how lean concepts aim to reduce waste and streamline flow.
Option 1 asserts that lean systems reduce equipment needs by using larger lot sizes. In reality, lean practices typically emphasize smaller batch sizes and frequent setups to shorten changeover times and reduce work-in-progress, not larger lot sizes. This makes this statement inaccurate because larger lot sizes often tie up more inventory and mask efficiency issues rather than reveal them.
Option 2 states that lean systems result in a decrease in safety stock and work-in-process inventory. This aligns with lean principles such as just-in-time pull systems, kanban signaling, and continuous flow, which aim to minimize buffer stocks and WIP by creating smoother, more demand-driven production. This explanation correctly captures a core advantage of lean implementation.
Option 3 claims that lean systems increase manufacturing lead times. This is generally false; lean seeks to reduce lead times by eliminating non-value-added steps and smoothing flow. When implemented well, lead times tend to shrink rather than grow, so this option is incorrect.
Option 4 suggests that lean systems can be implemented in any production environment. Lean methods are powerful but not universally applicable without adaptation; certain environments with highly variable demand, rigid schedules, or bespoke/customized products may require different or hybrid approaches. Therefore, this statement overgeneralizes and is not accurate.
Overall, the accurate benefit emphasized by lean is the reduction of safety stock and WIP, while the other options describe common misconceptions or misrepresent lean adaptations across different contexts.

Which one of the following is an advantage of lean systems? 单项选择题

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