Industrial engineering is defined as applying engineering principles to optimize production and distribution processes through analyzing human and machine factors. The field developed between 1882-1912 with a focus on cost-effective design and wage incentives. Industrial engineers use math, science, and the latest technologies to analyze systems, specify parts, and improve efficiency while considering the five factors of production. In the US, around 1.6 million engineers work total with 214,000 being industrial engineers earning a median salary of $75,110. In Nepal, industrial engineering is still emerging but regarded as equivalent to mechanical engineering, though the industry applications are not fully realized.