Deep Agile Blending Scrum and Extreme Programming. Jeff Sutherland Ron Jeffries

Transcription

1 Deep Agile Blending Scrum and Extreme Programming Jeff Sutherland Ron Jeffries

2 Separation of XP and Scrum Methods * Largely Historical * XP chose to write more down * XP programmer focus * Successful Scrum Teams use XP-like Practices Deep Agile -- XP and Scrum Ron - 2

3 Need for Technical Practices * Interative Planning and Delivery * Feature Focus * * Incremental Design * Frequent Testing Deep Agile -- XP and Scrum Ron - 3

4 s not Purely Technical * User Stories * Cards * Informative Workspace * Big Visible Charts * Tracking Boards * Planning Game * Small Releases * etc Deep Agile -- XP and Scrum Ron - 4

5 Developer Focus * Low in Scrum * (discovery) * Higher in XP * (starting point) Deep Agile -- XP and Scrum Ron - 5

6 XP s Project Management Practices * Compatible with / Analogous to Scrum * Small Releases * Whole Team * Planning Game * Iteration Planning * Release Planning * Deep Agile -- XP and Scrum Ron - 6

7 s * What are they? * Their role in Scrum or any project. Deep Agile -- XP and Scrum Ron - 7

8 * Simple Design * Must proceed incrementally * Must deliver features right away * * Begin with a simple design Deep Agile -- XP and Scrum Ron - 8

9 * Pair Programming * Design is changing * How do we know what it is? Deep Agile -- XP and Scrum Ron - 9

10 * Test-Driven Development * System must work all the time; * Must ship every week or two; * How do we know it isn t broken? * Test it! Deep Agile -- XP and Scrum Ron - 10

11 * Refactoring * Simple Design cannot last! * Are we doomed??? * Design must improve * Refactoring is the technique * (Refactoring: Martin Fowler) Deep Agile -- XP and Scrum Ron - 11

12 * Continuous Integration * We ll be integrating at least every two weeks; * Integration is always hell; * Get good at it! Deep Agile -- XP and Scrum Ron - 12

13 * Shared Code * Any pair can improve any code at any time * -- Kent Beck * Faster progress * More eyes * Higher Quality Deep Agile -- XP and Scrum Ron - 13

14 * Coding Standard * All eyes on all code * Make it look alike * Don t go crazy just make it look alike Deep Agile -- XP and Scrum Ron - 14

15 * Whole Team * All the people you need * When you need them * Technical Resources * Business Resources Deep Agile -- XP and Scrum Ron - 15

16 * User Stories * Card * Conversation * Confirmation Deep Agile -- XP and Scrum Ron - 16

17 * Automated Customer Tests * How often do you need to test this? * How often do you want to test it by hand anyway??? Deep Agile -- XP and Scrum Ron - 17

18 * Informative Workspace * Tracking Boards * Big Visible Charts Deep Agile -- XP and Scrum Ron - 18

19 * Energized Work * Work vigorously * Rest effectively * Be done at the end of every day! Deep Agile -- XP and Scrum Ron - 19

20 * Sustainable Pace * If you go too fast, you ll go off the road! * Do not push for more stories!! Deep Agile -- XP and Scrum Ron - 20

21 * Slack * Have items on the list that can be dropped * You can always ask for more * Something will come up Deep Agile -- XP and Scrum Ron - 21

22 * Weekly Cycle Deep Agile -- XP and Scrum Ron - 22

23 * Quarterly Cycle Deep Agile -- XP and Scrum Ron - 23

24 * Code and Tests * These are the only documents that count * Generate the rest! Deep Agile -- XP and Scrum Ron - 24

25 * Team Continuity * Software is a work of the mind * Why throw that away? Deep Agile -- XP and Scrum Ron - 25

26 * Single Code Base * Anything else is waste! * Learn to do it right * Generate old versions if you must Don t save them Deep Agile -- XP and Scrum Ron - 26

27 * Daily Deployment * Go home clean! * Deliver value instantly! Deep Agile -- XP and Scrum Ron - 27

28 * Incremental Design * (Discussed Refactoring) Deep Agile -- XP and Scrum Ron - 28

29 * Sit Together * And talk with each other! * Would you rather have a hug from your Mom, or a nice note? Deep Agile -- XP and Scrum Ron - 29

30 * Ten Minute Build * Yes, we really mean it Deep Agile -- XP and Scrum Ron - 30

31 * Real Customer Involvement * Don t guess find out. * Set their expectations * Help them learn too Deep Agile -- XP and Scrum Ron - 31

32 * Incremental Deployment Deep Agile -- XP and Scrum Ron - 32

33 * Shrinking Teams * As need declines * People move on Deep Agile -- XP and Scrum Ron - 33

34 * Root Cause Analysis * Ask Why Five Times Deep Agile -- XP and Scrum Ron - 34

35 * and many many more * The richness of software development * And of how to do it * Cannot be plumbed by any list! Deep Agile -- XP and Scrum Ron - 35

36 Forces and Responses * These practices are not random, * Nor are they mandatory * But they are needed * And there are reasons why Deep Agile -- XP and Scrum Ron - 36

37 Forces and Responses * Teamwork * Team Room * 2X Productivity!! * Don t Specialize * Don t Hand Off * Pair Programming * Shared Code Deep Agile -- XP and Scrum Ron - 37

38 Forces and Responses * Business Value * Small Stories * Avoid Tasks * Automated Customer Acceptance Tests Deep Agile -- XP and Scrum Ron - 38

39 Automated Customer Acceptance * Communcation * Learning * Confidence Tests * Repetition! Deep Agile -- XP and Scrum Ron - 39

40 Forces and Responses * Continuous Delivery * Grow the Design * Refactoring * Continuous Integration * Ten Minute Build * Shared Code * Energized Work * Sustainable Pace Deep Agile -- XP and Scrum Ron - 40

41 Forces and Responses * Predictability * Get Done = Done * Tests * Test-Driven Development * Stories vs Tasks Deep Agile -- XP and Scrum Ron - 41

42 XP and Scrum and XP and * Fundamental Message * Focus on what your team needs * Focus on Running Tested Features * Done =Done * Not Is it Scrum? * Not Is it XP? * Is it working for us? Deep Agile -- XP and Scrum Ron - 42