Industrial engineers work to reduce any waste of time, money, materials, energy or other commodities by streamlining procedures and processes. This is achieved through the application of specialist knowledge and skills to specify, predict and evaluate results from processes and systems. The results of this allow for new processes and systems to be produced, with business administration activities overlapping with areas such as production and manufacturing engineering, operations research, systems and supply chain engineering, management science and engineering, safety engineering, ergonomic and logistics engineering and more depending on the needs of the user.