This course provides a comprehensive introduction to maintenance strategies, focusing on both preventive and predictive maintenance approaches. It covers the principles, tools, and implementation techniques of each method, while highlighting their differences, benefits, and limitations. Students will learn how to design and optimize maintenance programs to enhance equipment reliability, reduce downtime, and improve operational efficiency. The course also explores the economic, safety, and environmental impacts of maintenance, alongside emerging technologies and trends in predictive maintenance. Practical exercises and real-world applications support continuous improvement and effective maintenance management.