Individuals and interactions over processes and tools
Working software over comprehensive documentation
Customer collaboration over contract negotiation
Responding to change over following a plan
PDCA - The Plan-do-check-act Procedure
Plan: Recognize an opportunity and plan a change.
Do: Test the change. Carry out a small-scale study.
Check: Review the test, analyze the results, and identify what you’ve learned.
Act: Take action based on what you learned in the study step. If the change did not work, go through the cycle again with a different plan. If you were successful, incorporate what you learned from the test into wider changes. Use what you learned to plan new improvements, beginning the cycle again.
Backlog Refinement
Use T-shirt sizes to define the size of the backlogs
Sizing instead of Hours based
Add story points based in the t-shirt size.
Split the story vertically, having a piece that can be delivered.
