Continual improvement principles and methods
A model, a register, and a habit
Continual improvement is both a practice and a mindset: everyone improves the work they do, and a dedicated practice coordinates and supports that effort. Candidates should know the improvement model as a set of questions: What is the vision? Where are we now? Where do we want to be? How do we get there? Take action. Did we get there? How do we keep the momentum going?
These steps are iterative, not strictly linear; a team may loop back, run several improvements in parallel, or stop when value no longer justifies the effort. Two steps are habitually skipped in practice and are therefore favourite exam answers: establishing the vision (an improvement without purpose cannot be prioritized) and keeping the momentum going (embedding, reinforcing and measuring benefits long after go-live).
Supporting mechanics: the continual improvement register holds opportunities with status, ownership and value cases; baselines and measurements prove whether the change worked; maturity assessments show where capability is weak. Methods include Lean-style incremental change, structured problem solving such as DMAIC, retrospectives, and direct observation of the work. Improvement is not limited to fixing defects - it also removes waste, simplifies and exploits opportunity.
Traps: describing the model as seven sequential project phases; assuming improvement is only corrective; assuming only a specialist team may raise improvements; forgetting that improvement needs a value justification and a feedback loop.
Rule of thumb: any improvement proposal should be answerable in three sentences - what outcome, how will we know, and who owns it.