Assume you are in charge of the implementation and deployment of a new system that is replacing a critical existing system used $24$ hours a day. To minimize risk, you plan to phase in the deployment of new subsystems over a period of six weeks and operate both systems in parallel for at least three weeks beyond the last new subsystem deployment.

Develop a procedure and document to implement the new system.

Develop a training plan for current personnel before subsystem deployments and for those employees who will train other employees.