Effective practice PDCA
This Deming cycle sample shows plan-do-check-change diagram variance.
It was designed on the base of Wikimedia Commons file: Learning process and quality standards.png. [commons.wikimedia.org/wiki/File:Learning_process_and_quality_standards.png]
"Rate of change, that is, rate of improvement, is a key competitive factor in today's world. PDCA allows for major "jumps" in performance ("breakthroughs" often desired in a Western approach), as well as Kaizen (frequent small improvements). In the United States a PDCA approach is usually associated with a sizable project involving numerous people's time, and thus managers want to see large "breakthrough" improvements to justify the effort expended. However, the scientific method and PDCA apply to all sorts of projects and improvement activities." [PDCA. Wikipedia]
The plan-do-check-change diagram example "Effective practice PDCA" was designed using ConceptDraw PRO software extended with Plan-Do-Check-Act (PDCA) solution from Management area of ConceptDraw Solution Park.