 It begins with selling product concepts that don’t have fixed designs and are expected to result in a new, unique end product.This could be any product, from enterprise software applications to special aircraft to a pair of jeans.But the typical ETO environment usually deals with the design and build of unique custom engineered complex machinery and industrial equipment - one in which there is heavy involvement of the following engineering disciplines; mechanical, electrical, mechatronics, software, manufacturing and systems engineering.