EXtreme Manufacturing
eXtreme Manufacturing (XM) is an iterative and incremental framework for manufacturing improvement and new product development that was inspired by the software development methodology Scrum and the systematic waste-elimination (lean) production scheduling system Kanban (かんばん(看板)). It is often presented as the intersection between three contributing, component circles: that of Scrum (with its standard roles and responsibilities, its principles of iterative design and sprints, and of making work visible), of object-oriented architecture (emphasizing modularity of components, the interface/contract-first rather than contract-last approach to design, as borrowed from web programming, etc.), and of concepts from extreme programming (XP), a software development methodology, extended to engineering (including use of user stories, "pairing and swarming" work patterns, and ideas from test driven development).