Examines some of the unforeseen incidents which have occurred in computer-controlled process plants, and suggests how such incidents can be made less likely.IChemE, the Institution of Chemical Engineers, is the center for chemical, biochemical and process engineering professionals worldwide. We are the heart of the process community, promoting competence and a commitment to sustainable development, advancing the discipline for the benefit of society and supporting the professional development of members. Some of the areas we publish in include: -Safety in the process industries - the BP Process Safety series-Consultancy for chemical engineers-Project management in the process industries-Contract management in the process industries - International Forms Of Contract series-Communication skills for engineers