Workshop 1: Devops modelling theory, practice and caveats

There is no official “devops” Manifesto. I’ve always shied away from writing this for two main reasons:

not setting things in stone encourages people to keep an open mind. So they can come with their own version of the solution AND the problem. This allows our field to expand and have people re-think and re-evaluate other people’s solutions. it often brings a sense of checklist. Do A,B,C and you have reached the final goal. Devops does not have an end-goal, it is continuous journey; whatever you change to improve, will have an impact and might require you re-think your strategy

Therefore I value more the different models people have developed along the years to understand/explain the “devops” problem space:

In the first part of the session, I will iterate over the conceptual models I’ve come across that try to capture the essence of devops. In part two we will leave the theory, and provide a more practical way of obtaining the shared view, using a sort of ‘reverse value stream mapping’ technique. Finally, we’ll take a step back and see how well we’ve done in the past years, explain some of the caveats and look towards the future.

Don’t expect specific tools to be explained in full; We will refer to the tools as examples of concepts though. Come with an open mind and re-think / re-evaluate your “devops” project while applying the principles of the different models.



Patrick Debois


Can act as a technical project manager, expert, pre-sales, team-leader or architect. He is a team motivator and has a great sense for initiative. Analytic and solution oriented with a high determination to deliver professional quality and achieve customer satisfaction. Because of interdisciplinary expertise in infrastructure, development,operational and project management, he acts as a communication integrator with project members.

Specialties: Skilled in analyzing, implementing and managing complex multi-tier infrastructure projects. Passionate about web related technology and concepts in security,knowledge management and portals. With an keen interest in usability and information architecture or everything that puts the customer experience central.

In order to understand current IT organizations, Patrick Debois has made a habit of changing both his consultancy role and the domain that he works in: sometimes as a developer, manager, sysadmin, or tester, and even as the customer. If there is one thing that annoys him, it is the great divide between all these groups. Patrick first presented concepts on Agile infrastructure at Agile 2008 in Toronto, and in 2009 he organized the first devopsdays. Since then he has been promoting the notion of DevOps to exchange ideas between these groups, and show how they can help each other to achieve better results in business.