The One-Page Risk Management Plan is based on the A3 technique, which was originally created by Toyota as a problem solving method. The name A3 comes from the fact that when the process is complete, all of the relevant information can fit on a standard A3 size piece of paper.
While the A3 technique was originally designed for problem solving during manufacturing, it can also be a valuable tool for risk management. You can be use the technique to guide the risk management process and ensure that all critical information is captured in a concise manner.
So, you have identified a risk in your organization or project ... now what? When a risk is identified there are four strategies you can use to address it. The strategies can be remembered using the acronym ACAT: