Monitoring and evaluation are tools and strategies that help a project know when plans are not working and circumstances have changed. They give the management the information it needs to make decisions about the project and the necessary changes for strategy or plans. In this sense, monitoring and evaluation are iterative. In system design, monitoring is the practice of collecting, processing, and analyzing data from a system to observe its behavior, health, and performance. Without monitoring, a complex system is a "black box" you only know it has failed after it has already broken. Learn the meaning of monitoring as the present participle of monitor verb, and see how to use it in sentences. Find out the collocations and related words for monitoring in English. Learn what monitoring is, how it differs from evaluation, why it is important, and what to monitor at different levels and scales. Find out how to design and integrate a monitoring system into your program or organisation.