三大改善活动机制简洁高效，是保障精益取得成果的重要抓手，更是精益管理活动的重中之重。该机制是作者推行精益管理活动20多年实践精髓的总结。本书围绕三大机制，将这套历经检验、行之有效的方法系统地整理总结出来。全书共分五篇，分别对全员经验改善活动的定义、愿景、目标、路径和实战事例等内容进行叙述，并阐述了全员推行精益改善的三大机制的目的和措施，最后讲述了课题改善中发现问题、分析问题和解决问题的逻辑、路径与方法。
1 Basic Concepts and Previous Studies
1.1 Introduction
1.2 The three-dimensional Galilean space G3
1.2.1 Curves in Galilean space G3
1.2.2 Bishop frames
1.3 Natural geometry of ruled surfaces in G3
1.3.1 Darboux frame of a curve lying on the ruled surface of type I
1.3.2 Darboux frame of a curve lying on the ruled surface of type III
1.4 Helices in G3
1.5 Bertrand curves in G3
1.6 Geometry ofthe pseudo—Galilean space G3
1.6.1 Curves in pseudo-Galilean space
1.6.2 Bishop frames in G3
1.7 Natural geometry of ruled surfaces in G3
1.7.1 Darboux frame of a curve lying on a ruled surface in G3
1.8 Helices in G3
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