Introducing the DevOps Drumbeat
The move to DevOps also introduces additional constraints to our burgeoning Iron Polygon, as individual projects become less distinct. In an environment focused on continuous automated testing as well as continuous integration and deployment, individual iterations become the project unit as organizations establish regular cadences of repeated iterations (link is external) instead of the discrete, monolithic project releases that characterize traditional waterfall-oriented development.
Rethinking the Iron Triangle in terms of DevOps cadences instead of software projects changes everything, as it brings the entire discussion up a level, as shown in the diagram below. In fact, each neighboring pair of constraints on the AA Quality Star leads to a new constraint.
Applying the DevOps Context to the AA Quality Star
Scope and agility connect to drive inherent flexibility. Agility and quality lead to resilience. Quality and cost factor into continuous testing. Cost and time drive continuous integration and deployment. And finally, time and scope connect to form the fifth new constraint, technical debt – not the bad kind where time constraints lead to sloppy code, but the good kind where the team intentionally introduces shortcuts or missing functionality into the current iteration as part of the overall cadence.
Read the entire article at http://devopsdigest.com/the-devops-drumbeat-part-2.
