Industrial engineering is a scientific field that studies how to design, regulate, and apply factors such as humans, machines, methods, materials, and finances into integrated systems for industrial functions. It focuses on designing, improving, and installing systems consisting of humans, materials, equipment, and energy. Industrial engineering aims to specify, predict, and evaluate results from integrated systems. It requires knowledge of mathematics, physics, and social sciences as well as engineering principles and methodology. The field develops to increase efficiency and effectiveness in industrial activities. Industrial engineering designs, refines, and implements integrated systems based on engineering analysis and design principles to determine, predict, and evaluate results.