Field engineering - when a design is incomplete or otherwise doesn't work and is left to the field technician or installer to figure out how to fix. ie. The parts didn't fit together so I did some ...

Environmental engineering is the application of science and engineering principles to improve the environment (air, water, and/or land resources), to provide healthful water, air, and land for human ...

Safety engineering is an applied science strongly related to systems engineering. Safety engineering aims to insure that a life-critical system behaves as needed even when pieces fail. In the real ...