<P> Engineering is also an information - intensive field, with research finding that engineers spend 55.8% of their time engaged in various different information behaviours, including 14.2% actively seeking information from other people (7.8%) and information repositories such as documents and databases (6.4%). </P> <P> The time engineers spend engaged in such activities is also reflected in the competencies required in engineering roles . In addition to engineers' core technical competence, research has also demonstrated the critical nature of their personal attributes, project management skills, and cognitive abilities to success in the role . </P> <P> There are many branches of engineering, each of which specializes in specific technologies and products . Typically engineers will have deep knowledge in one area and basic knowledge in related areas . For example, mechanical engineering curricula typically includes introductory courses in electrical engineering, computer science, materials science, metallurgy, mathematics, and software engineering . </P> <P> When developing a product, engineers typically work in interdisciplinary teams . For example, when building robots an engineering team will typically have at least three types of engineers . A mechanical engineer would design the body and actuators . An electrical engineer would design the power systems, sensors, electronics, embedded software in electronics, and control circuitry . Finally, a software engineer would develop the software that makes the robot behave properly . Engineers that aspire to management engage in further study in business administration, project management and organizational or business psychology . Often engineers move up the management hierarchy from managing projects, functional departments, divisions and eventually CEO's of a multi-national corporation . </P>

Which of these is an example of how engineers have contributed to society