《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