《The Art of Lean Software Development》读书笔记

Lean从丰田生产系统发展而来，首先是几个常见的日文字：

• Andon - Means “light” in Japanese. In a Lean environment, it is a visual device (usually a light or a board of lights) that gives the current status of a production system, signaling any problems (typically, green = OK, yellow = needs attention, and red = urgent/production stopped).
• Jidoka - Autonomation, the ability of a machine to inspect its work and operation and to notify a human if a problem is detected.
• Kaizen - The continuous, incremental improvement of an activity to create more value with less waste.
• Kanban - A signaling system used to signal the need for an item, typically using things like index cards, colored golf balls, or empty carts.
• Muda - Waste that consumes resources but produces no value.

Lean软件开发的七个原则：

• Eliminate waste
• Build quality in
• Create knowledge
• Defer commitment
• Deliver fast
• Respect people
• Optimize the whole

比较Agile软件开发和Lean软件开发的不同：

	Agile	Lean
目光	软件开发实践和项目管理	任何范围，可能延伸至整个企业； Lean把Agile视为一种可行的支持性实践
聚焦	客户协作和快速交付	从客户的角度消除浪费（Muda）； 消除浪费的一个主要工具是Value Stream Mapping (VSM)
包装	有正式方法论	只有一些推荐实践
操作		从Agile（例如Scrum）开始，然后加上VSM

Lean软件开发实践之concrete practices

• Source Code Management and Scripted Builds
• Automated Testing
• Continuous Integration
• Less Code
• Short Iterations
• Customer Participation

Lean软件开发实践之analysis practices

• Kaizen (continuous improvement)
• Kaizen Workshops
• Value Stream Mapping (VSM): value-added, non-value-added, or non-value-added but necessary
• Root Cause Analysis (five whys)
• Kanban