Engineering Management is an interdisciplinary problem-solving field and Engineering Managers use their knowledge of engineering to oversee a variety of activities. They must understand the technologies being developed as well as the rapidly changing marketplace in which these technologies will be applied. Engineering Managers may direct and coordinate building activities at construction sites or activities related to production, operations, quality assurance, testing, or maintenance at manufacturing sites. They are also responsible for developing the overall concept of a new product or for solving the technical problems that prevent the completion of a project.