1. Converting from Legacy System to DBMS The Johnson Manufacturing Corporation employs a legacy flat-file data processing system that does not support data sharing between key business processes including sales order processing, production planning, inventory management, procurement, payroll, and marketing. It has long been though that upgrading the system would be too disruptive to operations. Recently corporate management has changed its thinking on this matter and has hired your consulting firm to investigate the possibility of switching to a relational database management system. Prepare a memo to the top management at Johnson explaining the advantages of a DBMS. Comment in your memo on the necessity of hiring a DBA and the role this person would play