P: plan, plan.
D: do, do, implement.
C: check, to check, to check.
A: action, to act (correct).
Specific instructions:
plan: anything, there must first be a plan, a goal. The plan must have: specific matters (problems) (What), the solution, to achieve the target effect (How), responsible personnel (Who), the completion of the time (When). Only clear these elements (3W1H, another element Why can be stated inside the element What, is why to deal with this specific matter).
do: after the development of the plan, is the organization of the implementation. Organization of the six elements 5M1E, is the financial (Money), people (Men), machine (Machine), material (Material), law (Method), the environment (Environment). Organization, distribution, command, coordination (4 major management tools) good these elements.
check: the implementation process, to constantly check, review, and plans, whether the goal deviation. Is the goal (effect, or progress) there is a problem, or the implementation of personnel, machinery, equipment, tools and instruments, materials, methods, environmental problems, according to 5M1E to review. After the review, go to the next step.
action: correction. Adjust the target (effect, or progress), or 5M1E. then start a new plan, re-enter the PDCA cycle.
PDCA is a cycle, and these four processes are not run once and finished, but are done week after week. A cycle is completed, part of the problem is solved, there are other problems have not yet been solved, or a new problem has arisen, and then the next cycle.