In a recent project, we were tasked with designing how we would replace a Mainframe system with a cloud native application, building a roadmap and a business case to secure funding for the multi-year modernisation effort required. We were wary of the risks and potential pitfalls of a Big Design Up Front, so we advised our client to work on a ‘just enough, and just in time’ upfront design, with engineering during the first phase. Our client liked our approach and selected us as their partner. The...