HMC Workbook

HMC’s Lean Journey

Some improvement efforts start with these activities, while others start with an A3. An A3 is simply a large piece of paper, divided into 9 boxes that help us to think through problems in a structured way. With A3s, we get to the true ROOTS of problems, so we can work on fixing the RIGHT things, and we identify ways to measure problems, so we can monitor whether they are being fixed. As we work through our goals each year, we are committing to a few simple Lean principles:

8