Collect and document user's requirements and develop logical and physical specifications; Research, evaluate and synthesize technical information to design, develop and test computer-based systems; Develop data, process and network models to optimize architecture and to evaluate the performance and reliability of designs; Plan, design and co-ordinate the development, installation, integration and operation of computer-based systems; Assess, troubleshoot, document, upgrade and develop maintenance procedures for operating systems, communications environments and applications software; Lead and co-ordinate teams of information systems professionals in the development of software and integrated information systems, process control software and other embedded software control systems