The document outlines the key modules of an enterprise resource planning (ERP) system, including general ledger, payables, receivables, expense management, procurement, contract management, mobile procurement, supplier management, cost management, billing, planning, forecasting, management, scheduling, resource management, change management, design, build, test, training, and delivery. It lists functions such as general ledger, payables, assets, receivables, collections, expense management, and others.