0.始めました 1. Changing Software 2. Working with Feedback 3. Sensing and Separation 4. The Seam Model 5. Tools 6. I Don't Have Much Time and I Have to Change It 7. It Takes Forever to Make a Change 8. How Do I Add a Feature? 9. I Can't Get This Class into a Test Harness 10. I Can't Run This Method in a Test Harness 11. I Need to Make a Change. What Methods Should I Test? 12. I Need to Make Many Change