In the development phase hardware for the new system is acquired. Software is developed through either custom development or adapting existing applications software to the specifications of the design. The installed system is thoroughly tested with sample data that complies with the systems design. Systems implementation sees the commissioning of the new design and the training of staff. A method of changeover from old to the new system is chosen either a direct changeover, parallel operations, pilot operations or a phased in approch being selected.
Emphasis is placed on staff being adequately trained for the new system.
Maintenance of the system consists of conducting an audit of its performance against the design specifications and determining if the aims, such as productivity goals are being met. The system should be evaluated periodically and modified, as required, to maintain the information service that was intended.