The phenomenon of the Toyota Production System (TPS) and the term “Lean” have received much attention from researchers and especially practitioners over the past 40 years. As scholarly perspectives on these topics continue to evolve, we invited Wally Hopp and Mark Spearman to contribute an essay to the JOM Forum that became “The Lenses of Lean,” and we invited several other prominent authors affiliated with Lean to react to that article and share their perspectives on Lean. We are delighted to have received four such contributions, which we have assembled here with the hope of furthering this important conversation (Note: For consistency of exposition, we have capitalized the term “Lean” throughout these commentaries when it is used in the phenomenological sense). —Tyson Browning and Suzanne de Treville

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关于“精益的镜头”的评论

在过去的 40 年里，丰田生产系统 (TPS) 现象和“精益”一词受到了研究人员特别是从业人员的广泛关注。随着关于这些主题的学术观点不断发展，我们邀请沃利霍普和马克斯皮尔曼向JOM论坛投稿一篇文章，成为“精益的镜头”，我们还邀请了与精益有关联的其他几位著名作者对那篇文章做出反应，分享他们对精益的看法。我们很高兴收到四份这样的贡献，我们聚集在这里是为了进一步推动这一重要的对话（注意：为了说明的一致性，当在现象学意义上使用“精益”一词时，我们在这些评论中将其大写）。——泰森·布朗宁和苏珊娜·德·特雷维尔