If you are in sales, how effective is your activity?  If you are in marketing, what kind of results are you getting and does it cover your break even?  Is that advertisement really paying for itself and would the money and time investment be better leveraged elsewhere?  Many of us don’t know the answers to these questions.  Have you ever considered the value of testing and measuring to be sure that a plan is working?  PDCA stands for Plan, Do, Check and Adjust.  Whether sales, marketing, human resources, strategy planning, or even exercise – take the proper time to plan the desired result, then execute (do) your strategy.  Once a proper amount of time has passed for execution, check the progress - measure the results.  Finally, it is time to make proper adjustments – execute better, scrap it, change it, adjust the goal –whatever it takes to be sure you’re always working toward an effective, measurable result.  There you have it - PDCA.