PDCA is short for Plan, Do, Check and Act and is a quality model used in continuous improvement
. The 'Plan' aspect is to identify an opportunity and after that plan what change will be made. Do is always to put into action the transformation on a small scale. "Check" is to use data to analyse the results of the modification and establish if it created a difference. Finally, Act is to apply the effective transformation on a larger scale and consistently evaluate your results. If the transformation would not work then you certainly would turn to re-start the cycle.
Change is good!
And so overall it is visable that continuous improvement aids every last element of business through applying change to increasing staff morale and forward planning. Change is typically disliked however if we combat the fears that are at the bottom of the dislike then we have won most of the battle.