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Scrum vs. Kanban - "You Talk. We Work."

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Published on Dec 1, 2015

Follow the fortunes of an Agile Team that splits in two: one side stuck with Scrum; the other side switched to Kanban. Will it all end in tears?

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The first Agile team I joined was a Scrum Team. When the team split into two, I was surprised to see that my ex-team mates were doing things differently. I didn't know there was another way to "do Agile".

This is a story of Two Agile Teams.

More correctly, it’s the tale of one Agile Team that split into two Agile Teams.

What makes the story interesting is that it was more than just an organisational separation.

It was an Agile separation:
- One team continued as before - with SCRUM
- The other team dropped Scrum in favour of KANBAN

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Music: 260809 Funky Nurykabe: ccmixter.org/files/jlbrock44/29186

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14. Scrum vs. Kanban - "You Talk. We Work."

This is a story of Two Agile Teams. More correctly, it’s the tale of one Agile Team that split into two Agile Teams. What makes the story interesting is that it was more than just an organisational separation. It was an Agile separation. A New Team --------- I joined a team in 2012 It was, I was told, a team that 'did Agile'. At the time, I knew very little about 'Agile'. But I could see from the get go that they weren’t doing it by halves. There’d clearly been lots of training. They had all kinds of tools. They were doing all kinds of 'rituals'. We’ll get into the specifics of how the team worked in a minute. The Split ----- Fast forward a year and the company went through a fairly major reorganisation. My team was split in two. Although reporting lines changed, the seating plan didn’t. There was one outward indication of change: where there had been one agile board, there was now two. Oh, and we did two stand-ups every day , ours at 10:00am, theirs at 10:15. A New Flavour ----- Ever-observant, it took me a couple of weeks to notice that the other team was doing a different 'flavour' of Agile. I hadn’t realised that there was more than one flavour of Agile. What my team was doing was, called Scrum. The other team was doing something called Kanban. “Kanban”. Really This was a word I knew from way back. But I knew it in the context of manufacturing. I couldn’t immediately see how it applied to the process used by my (former) teammates. So I asked the Lead Developer of 'Team Kanban': 'What the difference between Scrum and Kanban ' He was ready with an immediate answer: 'You Guys Talk About Work. We Do Work.' Ouch! in that moment, I learned an important lesson about Agile: It can be an emotive issue. Beliefs can be deep-seated. the Team Kanban Lead Dev clearly thought that Kanban was better than Scrum. I held… the opposite view. My view was both strongly held… and completely without evidential foundation. I’m a little older now. And, I hope, a little wiser. Natural Experiment ---- I can now see that the team split was a perfect natural experiment, along the lines of: “Take two identical twins. Separate them at birth. Feed one Scrum. Feed the other Kanban. Observe the result.” So I hope you’ll join me on a little forensic investigation It’s going to take more than one episode to do it. But in this episode, we have juat enough tom to take a 20,000 feet view of the two teams and their processes. Team Scrum ----- Team Scrum worked on two week Sprints. On the Monday, we’d take ourselves off to a quiet part of the building for a Sprint Planning session. The Product Owner would select items from the backlog, we’d play “Planning Poker” to estimate the size each item. And we’d continue until we had roughly one “sprint’s worth” of cards. Sprint planning over, each developer would pick up a card and set to work Every morning there’d be a stand-up - 10 am on the dot. And so it would go on day after day, with the cards gradually making their way across the board. By the about the Tuesday of the second week, we’d expect all of the cards have moved at least one step. It’s then a race - a sprint - to get everything tested and ready for release by Friday. We didn’t always succeed in getting everything across the board. Any item that failed to make it would be “recycled” into the next Sprint. On the Friday morning, everything in the release column would be packaged and made ready for release. One last thing to round out the Sprint: a Retrospective. A chance for the team to get together… to reflect on what well, to discuss what could be improved… and to commit to one or two action items for the following sprint. Team Scrum - Evidence ----
https://www.youtube.com/watch?v=9Jgu1...

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