Engineering can be a very broad trade, but may defined as a handful of sub-disciplines, which include Chemical, Civil, Electrical, Mechanical, and Aerospace. Engineering programs can offer specific classwork in the chosen field in addition to courses in mathematics and science. In most programs, a design course and a computer or laboratory class can be included as well. Engineering graduates use a combination of science and mathematics to solve critical problems in the social and commercial atmospheres. Engineers also work to ensure quality and efficiency within the development stages, particularly when it comes to the manufacturing stage. Civil and energy system engineers include working on the construction of transportation systems and the mining of raw energy resources. When Engineers take advantage of newer technology, they can improve product functionality in specific areas including solar energy, electric power, and biological sciences. By measuring the outcome certain products can have on its consumers and their environment, engineers can enhance the performance of financial systems, healthcare, and food products.