Which field of engineering is considered the least complex to study?

Among engineering disciplines, industrial engineering is often considered one of the least complex to study. Industrial engineering focuses on optimizing processes and systems within various industries, including manufacturing, healthcare, and logistics. Unlike some other engineering fields that may involve more complex theoretical concepts or advanced mathematics, industrial engineering emphasizes practical applications of efficiency and productivity improvement. Students in this discipline typically study topics such as operations research, supply chain management, and quality control.