Industrial engineering is concerned with redesign of engineering systems with a view to improve their productivity. Industrial engineers analyze productivity of each resource used in engineering systems and redesign as necessary to improve productivity.
Defects reduce productivity. Hence reducing defects is part of industrial engineering work. Reducing defects in production and reducing defects in incoming materials is part of industrial engineering.
It has to be ensured that the increase in productivity due to the use of low-cost materials, processes and increasing speed of machines and men, should not lead to any decrease in quality of the output. Hence in each step of productivity improvement, IEs have to make sure that the quality of the system does not go down.
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