What is Action Plan?

Legal Definition
An action plan is a detailed plan outlining actions needed to reach one or more goals. Alternatively, businessdictionary.com defines an action plan as a "sequence of steps that must be taken, or activities that must be performed well, for a strategy to succeed".
-- Wikipedia
Legal Definition
A set of steps to be performed for success. It has specific tasks, time horizon, and resource allocation. AKA action program.