The document discusses information technology applications that can be used across the different stages of construction projects from conception to maintenance. It describes the Royal Institute of British Architects' 11-stage Plan of Work process used in the UK construction industry. It then categorizes common IT applications into six groups - business and information management, computer-aided design and visualization, building engineering applications, computer-aided cost estimating, planning and scheduling, and computer-aided facilities management - and discusses how they can support each stage of a construction project.