Integration generally refers to the combining of parts in such a way that they work together to form a whole. In information technology, systems integration is the process in which computer professionals build systems by combining separately produced components or subsystems and addressing interaction problems. The goal may be to create a new mobile telephony system, enhance an existing computer network, or provide multi-media, Internet, or telemarketing services.

Systems integration professionals work closely with design and development teams, customers, and suppliers to gain a thorough understanding of the desired product and ensure that all components work together as intended. To guarantee that a system is fully operational, they design and run various testing scenarios and oversee the system’s installation.

The growing convergence of computing and communications technologies is expected to escalate the demand for systems integration experts. Due to the multi-faceted nature of this work, employers will prefer individuals who can combine strong technical skills with good interpersonal and business skills.

This field is well-suited for individuals who are analytical and detail-oriented, yet able to develop and maintain positive relationships. Although these professionals sometimes work independently, they frequently work in teams and must be able to communicate effectively with technical as well as non-technical personnel. A high degree of patience, persistence, and problem solving ability is needed to complete projects that may last up to two years or more.

Most systems integration professionals work in the computer and data processing services industry, providing consultation to commercial users on a contractual basis. Many work for consulting companies, but a growing number are self-employed as independent contractors.

Because integration skills are generally unnecessary once a system is functioning, contracted services are an attractive option for many organizations. Despite this trend, however, some employment opportunities do exist in large enterprises, such as government agencies, computer and electronic manufacturers, insurance companies, financial institutions, and universities.