computer programs for integrating and managing MRP II manufacturing systems, namely manpower management (employee identification, skills, titles, responsibility, attendance and assignments), facility management (production and non-production resources, equipment maintenance, service schedules grouped by work centers, work groups and plants), material management (materials availability and inventory), product definition (bills of material, engineering changes, process plans and cost calculations), production planning (master production scheduling, material resource planning and availability information), sales management (customer identification, order placement, product delivery, sales forecasting, sales territory and rep information), procurement management (vendor identification and pricing, requisition processing, procurement and receiving), production activity control (material and labor activity, load profiles, lead times and completion dates) and supported technology (MIS reporting, bar code and EDI interfaces