Part 1
Course reading
Kaizen means continuous improvement through small, evidence-based changes involving the people doing the work. It is different from a large one-off project and does not mean pressuring employees to work faster. Start with a real problem that affects safety, service, quality or cost, observe the process and define a measurable baseline. Avoid jumping directly to a favourite solution.
Use PDCA: Plan the change, Do a limited trial, Check the result and Act by standardising or revising. A problem statement should describe what, where, when and how much. For example, eight of 100 orders have wrong quantities in the evening shift, not simply staff are careless. Go to the work area, ask the operators and confirm facts with records. Five Whys can help explore causes, but each why must be supported by evidence; do not force exactly five or blame a person without understanding the process.
Common supply-chain wastes include waiting, excess movement, unnecessary transport, overprocessing, defects, overproduction and excess inventory. Choose a controllable issue and test a change on one area first. Make sure improvements do not transfer waste elsewhere or create a safety risk. An idea log should show the problem, baseline, proposed action, trial owner, dates, results and decision.
Worked example: average picking time is 12 minutes per order. A team trials clear bin labels and a revised route on one aisle. After checking comparable order sizes, the average becomes nine minutes, a 25 percent reduction: (12 minus 9) divided by 12 times 100. Verify pick accuracy and safe movement also stayed acceptable. Compare enough observations rather than celebrating one fast order.
If the trial works, update the standard method, train both shifts, assign an owner and review results later. If it fails, record the learning and adjust the plan. Kaizen is a learning cycle, not a suggestion box with no follow-up. Respectful team involvement, verified benefits and sustained controls matter more than the number of ideas collected.