Nuxeo World Session: Agile Development

2010 November 17th - Benjamin JALON - Scrum Master and Software Engineer bjalon@nuxeo.com Agile Development The Nuxeo ApproachWednesday, November 17, 2010

Agenda • Continuous Improvement: What does that mean? • Nuxeo Stories • Continuous Integration • Dev Team Organization • Scrum Approach • Deﬁnition of our metrics for predictability • Kanban Approach 2Wednesday, November 17, 2010

Continuous Improvement: What does that mean? • Organization around short iterations • Deﬁnition of ways we want to improve • Deﬁnition of metrics Pu • Review int t fe o t ed he bac • Analysis of impediments sys k tem • Analysis of chosen metrics • Update the process 3Wednesday, November 17, 2010

Nuxeo Stories: Continuous Integration 4Wednesday, November 17, 2010

Day in the life of a commit nuxeo.ear jboss.zip commit tomcat.zip SCM etc... Developer Developer Developer Pull Distrib. Publish Maven QA Build packages distributions Unit test Bench 5Wednesday, November 17, 2010

Day in the life of a commit nuxeo.ear jboss.zip commit tomcat.zip SCM etc... Developer Developer Developer Pull Distrib. Hundreds of Publish times a day! Maven QA Build packages distributions Unit test Bench 5Wednesday, November 17, 2010

- “Hey the build is broken!” - “Huh! Yes, and what else?” 6Wednesday, November 17, 2010

Improving visibility of metrics push/pull SCM Developer Developer Developer Pull Alert Distrib TV Jabber Publish Mail Nabaztag QA Maven 7Wednesday, November 17, 2010

Improving visibility of metrics Tv Board Mail notiﬁcation IM notiﬁcation Nabaztag 8Wednesday, November 17, 2010

- “Hey the build is broken!” - “Huh! Yes, and what else?” “Hey the build is broken!” “Ah! Ok, I’ll ﬁx it.” 9Wednesday, November 17, 2010

Nuxeo Stories: Dev Team Organization 10Wednesday, November 17, 2010

Scrum Approach Time Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Delivery Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Bloc Delivery Delivery Delivery Delivery Delivery 11Wednesday, November 17, 2010

Scrum Approach Product owner Make this and that Iteration (1 or 2 weeks) Make this and that Make this and that Time Make this and that Make this and that Make this and that Make this and that Make this and that Make this and that Starship/Atlantis Make this and that Make this and that Make this and that Make this and that Make this and that Make this and that Make this and that Product owner 12 Starship/AtlantisWednesday, November 17, 2010

Daily Scrum Make this and that Make this and that Make this and that Make this and that • What did you do yesterday? • What will you do today? • Any impediments? 13Wednesday, November 17, 2010

Board Organization Backlog Current Iteration Development Finished / Runnable@Client 14Wednesday, November 17, 2010

Issues • Our customers are not organized for iterative delivery • Scrum inside / Waterfall outside • Several projects at the same time How can we • Team members’ activities include make this • Support predictable? • Consulting • Timebomb from sales 15Wednesday, November 17, 2010

Make this and that Make this and that Make this and that Make this and that “Yes, sweety. I’ll be home in 10 minutes. I just need to ﬁnish my task.” 16Wednesday, November 17, 2010

Driven by the Complexity Trivial Easy Normal Difﬁcult Hard Core God Mode Linux Kernel Reimplementation 17Wednesday, November 17, 2010

Task Cost: Our Approach Make this and that Make this and that Make this and that Make this and that • Retrospectively, having time spent on a task for each complexity • Included in the daily scrum • What did you do yesterday? • How many hours spent for each task? • What will you do today? • Any impediments? 18Wednesday, November 17, 2010

Task Cost: Spreadsheet Make this and that Make this and that Make this and that Make this and that Total = 70 hours logged 19Wednesday, November 17, 2010

Task Cost: Spreadsheet Make this and that Make this and that Make this and that Make this and that =>7 hours to dispatch realistically 20Wednesday, November 17, 2010

Task Cost: How much time for ... Make this and that Make this and that Make this and that Make this and that Time spent Value used for planning Sales Standard deviation Average Complexity 21Wednesday, November 17, 2010

Iteration Preparation Make this and that Make this and that Make this and that Make this and that 22Wednesday, November 17, 2010

Feedback Loop for Future Make this and that Planning Make this and that Make this and that Make this and that Week 44 Week 45 preparation 23Wednesday, November 17, 2010

Metrics: Complexity Cost Evolution 24Wednesday, November 17, 2010

Metrics: Team Productivity 25Wednesday, November 17, 2010

Impediments • Velocity not constant • Tasks not ﬁnished at the end of the iteration 26Wednesday, November 17, 2010

Kanban Board Backlog Current Iteration Development CI Test PO Test Finished / Runnable@Client Try to maintain a regular ﬂow No backlog 27Wednesday, November 17, 2010

Kanban Board Backlog Current Iteration Development CI Test PO Test Finished / Runnable@Client Team must ﬁght against task backlog 28Wednesday, November 17, 2010

Team Process Deﬁnition Backlog Current Iteration Development CI Test PO Test Finished / Runnable@Client Team process organization (different for our two teams)Wednesday, November 17, 2010

Scrum Board 30Wednesday, November 17, 2010

Questions? 31Wednesday, November 17, 2010

Thank youWednesday, November 17, 2010

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Nuxeo World Session: Agile Development

by Nuxeo - Open Source ECM on Nov 24, 2010

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Nuxeo World Session: Agile Development — Presentation Transcript