An industrial system consists of inputs, processes, and outputs. Raw materials, labour, costs, transport, power and infrastructure are inputs. In a cotton textile industry, for example, inputs are cotton, human labour, transport cost, etc. Processes are activities done to convert raw material into finished products. In a cotton textile industry, ginning, spinning, weaving, dyeing, etc. process. The finished product and all profits earned are the outputs. In the cotton textile industry, the outputs are clothes we wear.