Engineering industry   primarily deals with the design, manufacture and operation of structures, machines or devices and comprises of sectors like civil, industrial, mechanical and chemical. The job categories are primarily based on designing, manufacturing, installing, repairing, packaging or selling engineering products. The other employment areas include construction, building, mining, etc.

Electronics  is the branch of science and technology that deals with electrical circuits involving active electrical components such as vacuum tubes, transistors, diodes and integrated circuits.

EPC stands for Engineering, Procurement and Construction. It is a form of contracting agreement. Under an EPC contract, the contractor will design the installation, procure the necessary materials and construct it, either through own labor or by subcontracting part of the work.

Production industries deal with the creation of commodities, by imparting to raw materials utility, added value, or the ability to satisfy human wants.