Slides from my talk at DevOpsCon Munich on How and why to design your teams for software

I gave a talk at DevOpsCon Munich on How and why to design your teams for modern software systems – here are the slides:

In the talk, I covered various angles including:

  • Conway’s Law
  • Cognitive Load for teams
  • Team Topologies
  • Guidelines for team design

I will be giving a full-day workshop on Organisation Design for Modern Software Systems at Jax DevOps London 2017 (3-6 April) and DevOpsCon Berlin 2017 (June 12-15). Booking is open now for both events.

Slides from Team and Monoliths talk at Velocity Conf EU, Amsterdam, 7 Nov

I gave a talk at Velocity Conference Europe 2016 called How to break apart a monolithic system safely without destroying your team based on work we have done at Skelton Thatcher Consulting over the past few years with various organisations.

Slides:

The slides are on Slideshare at http://www.slideshare.net/SkeltonThatcher/teams-and-monoliths-matthew-skelton-velocity-eu-2016 and the video of the talk will be online soon.

The main take-aways from the talk are:

  • Recognise that by starting with the needs of the team, we can avoid cognitive overload, thereby making future development more sustainable
  • Understand the type of monolith you are dealing with (there are many kinds of monolith)
  • Consider using Code Forensics (see Your Code as a Crime Scene)
  • Find the natural ‘fracture planes’ in your code and work with these
  • Instrument the monolith before splitting it up
  • Understand data flows and fault responses
  • Split off one segment of code at a time, considering the cognitive load for the team

There is quite a bit more in the talk itself, including the effect of Conway’s Law, the benefits of monoliths, and real-world examples from client engagements.

teams-and-monoliths-summary

A big thanks from me to the organisers of VelocityConf for their hard work, to the audience in my talk for some excellent questions, and to the speaker selection panel for choosing my talk (!).

Notes on ‘team responsibilities in cloud-native operations’ (Pete Mounce)

Summary:  Pete Mounce (@petemounce) from Just Eat gave a compelling talk at the London Continuous Delivery meetup group on ‘team responsibilities in cloud-native operations’. I found the talk hugely engaging, with loads of detail applicable to many organisations. Here are my notes from the meetup.

I captured my notes as slides:

Update: the video of Pete’s talk is here on Vimeo:

Pete Mounce video frame

There were several specific points made by Pete that were interesting for me:

Continue reading Notes on ‘team responsibilities in cloud-native operations’ (Pete Mounce)

Using Chef for infrastructure automation – reading list

I have recently read (and re-read) several books on Chef in order that I can recommend books to clients who are starting with infrastructure automation (and to remind myself of the more obscure uses of knife, encrypted databags, and so on). In this post I comment on these books:

  • Chef Infrastructure Automation Cookbook by Matthias Marschall
  • Managing Windows Servers with Chef by John Ewart
  • Test-Driven Infrastructure with Chef (2nd Edition) by Stephen Nelson-Smith
  • Automation Through Chef Opscode by Navin Sabharwal and Manak Wadhwa

Summary: read Chef Infrastructure Automation Cookbook for a good introduction to Chef on both Linux and Windows; read Managing Windows Servers with Chef if you manage many Windows machines; but most of all read Test-Driven Infrastructure with Chef because without a test-driven approach your infrastructure code will rapidly become tangled, unsupported, and obsolete.

Continue reading Using Chef for infrastructure automation – reading list

The most common DevOps adoption mistake, and other answers – interview for DevOpsFriday5

I was interviewed recently by the folks at Ranger4 for their #DevOpsFriday5 question series. Since  June 2014 (when I was interviewed) I have published a couple of things which expand on the original answers, so I have outlined these here.  The questions were:

  1. What’s your preferred definition of DevOps?
  2. When people ‘do’ DevOps, what’s the most common mistake you see them make?
  3. How do you recommend an organisation new to DevOps start?
  4. What’s your prediction for what DevOps will look like in 2020?
  5. Where do you like to go to get a DevOps hit?

Continue reading The most common DevOps adoption mistake, and other answers – interview for DevOpsFriday5