Business process guide
PDCA: Plan, Do, Check, Act
PDCA provides a lightweight structure for disciplined experimentation in business operations.
Practical note: process design depends on organization, data, controls, laws, contracts and technology. Treat examples and calculators as educational planning aids, then validate changes against your own requirements.
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Plan
Define the problem, expected result, measure and proposed change.
Do
Test the change at appropriate scale while recording what actually happens.
Check and act
Compare results with the expectation, learn from gaps, then standardize, adjust or abandon the change.