Kanban @ nine.ch - Speaker Deck

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KANBAN @ NINE.CH Matías E. Fernández nine.ch DEV DAY — 2014-06-05

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INITIAL SITUATION • work overload • too much simultaneous work in progress • unclear priorities • undefined cycle times  things just happened … somehow

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REQUIREMENTS • we didn’t want to turn everything upside down • evolutionary change process towards a sustainable system

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ALTERNATIVES • Scrum • Kanban

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SCRUM • too many prerequisites • time boxing doesn’t work well with day-to- day work

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THE KANBAN METHOD 1. Start with what you do now. 2. Agree to pursue incremental, evolutionary change. 3. Respect the current process, roles, responsibilities & titles.

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THE CHANGE CURVE time competence and emotion shock denial insight acceptance training awareness integration

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CORE PRACTICES • Visualise • Limit Work in Progress (WiP) • Manage flow • Make policies explicit • Improve collaboratively, evolve experimentally (using models and the scientific method)

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VISUALISE CORE PRACTICES

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WHAT DOES A BUSY CONSTRUCTION WORKER LOOK LIKE?

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He’s busy!

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WHAT DOES A CONSTRUCTION WORKER LOOK LIKE WHEN HE’S HAVING A BREAK?

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They’re having a break.

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WHAT DOES A BUSY SOFTWARE ENGINEER LOOK LIKE?

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She’s busy!

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WHAT DOES A SOFTWARE ENGINEER LOOK LIKE WHEN SHE’S HAVING A BREAK?

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She’s having a break.

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How do you know whether the software engineer has time to fix your super urgent request?

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KNOWLEDGE WORK IS NOT VISIBLE … YOU HAVE TO MAKE IT VISIBLE!

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KANBAN BOARD

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BURN UP CHART

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LIMIT WORK IN PROGRESS CORE PRACTICES

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STOP STARTING AND START FINISHING!

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EXPERIMENT • Time yourself counting from 1 to 26. • Time yourself saying the alphabet a to z. • Add up the times. • Now time yourself counting from 1 to 26 while alternating saying the alphabet, so 1, a, 2, b, 3, c, etc. • Were you faster at saying each sequence individually or when you alternated?

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WIP LIMITS

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MANAGE FLOW CORE PRACTICES

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KNOW THE PHYSICS OF YOUR SYSTEM • cylinder capacity: 2 L • power: 125 kW (170 PS)

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KNOW THE PHYSICS OF YOUR SYSTEM • team members: 7 people • ticket throughput: ?

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DATA DRIVEN DECISIONS BUILD MEASURE LEARN

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MANAGING FLOW • Open Prio Meeting • no backlog! • Cumulative Flow Diagram  http://brodzinski.com/2013/07/cumulative-flow-diagram.html

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CUMULATIVE FLOW DIAGRAM

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MAKE POLICIES EXPLICIT CORE PRACTICES

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POLICIES • write them down and repeat them often! • examples: – orders are delivered the next business day – bugs have higher priority than features • Open Prio Meetings  http://www.lkce13.com/app/download/8243817195/Jimdo_Booklet_English.pdf

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IMPROVE COLLABORATIVELY, EVOLVE EXPERIMENTALLY CORE PRACTICES

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“Not every change is an improvement, but every improvement is necessarily a change” Eliezer Yudkowsky

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IMPROVE • small continuous, incremental and evolutionary changes that stick • shared understanding of theories about work, workflow, process, and risk • feedback loops

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KAIZEN: CONTINUOUS IMPROVEMENT • Open Prio Meetings  http://www.lkce13.com/app/download/8243817195/Jimdo_Booklet_English.pdf • regular team retrospectives • small incremental improvements • some ideas may result in bigger projects

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CORE VALUES STRATEGY, ALIGNMENT AND CULTURE • The Boy Scout Rule • Zero Waste • Consistency • Explicitness over Implicitness • YAGNI, You Ain't Gonna Need It • DRY, Don’t Repeat Yourself

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BOOK RECOMMENDATIONS

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! Kundenname, Präsentationstitel Nine Internet Solutions AG Albisriederstr. 243a CH-8047 Zürich Tel +41 44 637 40 00 Fax +41 44 637 40 01 [email protected] QUESTIONS?