🔍 Key Concepts

• Difference between planned/scheduled, condition-based (predictive), and corrective/failure-based maintenance • The goal of an integrated maintenance management system: maximize plant reliability and minimize unexpected downtime • Which approach is most useful as the central planning tool, with others used to support it

💭 Think About

• Ask yourself: In a real engine room, which type of maintenance would you use to organize most of your work orders and long‑term planning? • Which maintenance scheme is specifically designed to predict problems before they cause failure, and which is mainly reacting after something has already broken? • If all four approaches are used together, which one makes the most sense as the "backbone" of the system, into which the others feed data or exceptions?

✅ Before You Answer

• Be clear on definitions of planned/scheduled vs condition-based/predictive vs corrective/failure-based • Focus on the phrase "primary tool" in an integrated system rather than a single standalone method • Eliminate any choices that are mainly reactive (responding after failure) when the objective is to maximize reliability