GUMPS is an acronym for 'General Uninformed Management Planning System', which is a management system developed by the United States Department of Defense in the 1970s. It was designed to help managers plan and coordinate activities within their organization. OAFS stands for 'Organizational Analysis and Forecasting System', which is a computer-based system used to analyze and forecast organizational behavior. This system was developed to help managers better understand their organizations and make more informed decisions.