What about Legacy Systems?

People often associate Agile and DevOps with greenfield, brand-new development and see it as only applicable to start-ups and those with the luxury to start again. What about legacy systems? is a common question we get asked.

We'll show throughout this book that the Mobius loop and the foundation can apply to any kind of project and any kind of technology; greenfield or brownfield, small web app or large mainframe, on-premises infrastructure delivery or hybrid cloud technology.

We tend to start our journey on the Mobius loop at the discovery part (after building the base foundation of culture, collaboration, and technical practices). But you don't have to start there. In fact, you can start anywhere on the loop. The most important tip is to make sure you regularly travel around all parts of the loop. Do not get stuck in delivery loops and never return to discovery to revisit hypotheses and assumptions previously made. Do not get stuck in discovery...