Preface
- Why Write This Book
- Assumptions
- Who Should Read This Book
- Conventions Used
- How to Read
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Section I: Variation and Predictability
Chapter 1 – Wilt the Stilt
Chapter 2 – Variation Defined
- The Second Principle for Understanding Data
- Two Types of Variation
- Exceptional Variation
- The Two Mistakes of Data Analysis
- Flow Metrics and Variation
- Conclusion
Chapter 3 – Variation and Predictability
- A Definition of Predictable Process
- Sequential Analysis for Predictability
- What About Little’s Law?
- Conclusion
Chapter 4 – Process Behaviour Charts
- Table Data vs. Visualized Data
- The Running Record
- Rules for Presenting Data
- The First Principle of Understanding Data
- The X Chart
- The Moving Range Chart
- The XmR Chart
- Conclusion
Chapter 5 - How Much Data?
- How Much Data?
- PBCs with less than 20 data points
- When to Update Limits
- Conclusion
Chapter 6 – Detecting Signals on PBCs
- The Trend is Not Your Friend
- Detection Rules for XmR Charts1
- Zero Bounded Data
- Sign, Sign, Everywhere a Sign
- Did Wilt Improve?
- An Additional Rule?
- An Example Using Cycle Time
- Conclusion
Chapter 7 – XmR Charts and the Four Basic Metrics of Flow
- XmR Charts and Cycle Time
- XmR Charts and Throughput
- XmR Charts and WIP
- XmR Charts and WIP Age
- Conclusion
Chapter 8 – Myths and Other Considerations
- What If I Know I Have Bad Data?
- PBCs Using Medians
- The Wrong Ways to Use PBCs
- The Only Data Considerations You Need
- Conclusion
Chapter 9 - VoP, VoC, and Predictability
- Predicable Process vs. Arbitrary Targets
- VoC, VoP, and Scrum
- Three Types of Action
- Conclusion
Section II: Advanced Monte Carlo Simulation and Predictability
Chapter 10 - Monte Carlo Simulation Revisited
- A Quick Thought Experiment
- Probabilistic Thinking
- Forecasts for Multiple Items
- Conclusion
- Key Learnings and Takeaways
Chapter 11 - Different Sampling Methods
- Is Our Default Sampling Algorithm Incorrect?
- All Models Are Wrong, But Some Are Random1
- What Happened To Our Team?
- Conclusion
Chapter 12 - What Percentile Do I Choose?
- Here Comes The Rain Again
- Continuous Forecasting
- Conclusion
Chapter 13 - Scaling Monte Carlo
- Single Team With Work Item Hierarchy
- Single Team Working On Multiple Items
- Multiple Teams With Dependencies
- Just When You Thought It Was Safe…
- Conclusion
Chapter 14 - A Parting Thought
Appendices
Appendix A - The Basic Metrics of Flow
- Work In Progress
- Cycle Time
- Work Item Age
- Throughput
- Conclusion
Appendix B - How To Construct an XmR Chart
- The XmR Chart for Cycle Time
- Conclusion
