Rhinoceros Manufacturing Corporation has a flat$-$file processing system. The information processing facility is very large. Different applications, such as order processing, production planning, inventory management, accounting systems, payroll, and marketing systems, use separate disk files. The corporation has recently hired a consulting firm to investigate the possibility of switching to a database management system.

a$.$ In the flat$-$file data processing environment, users are said to own their data files. What is meant by the ownership concept?

$(3$ marks$)$

b$.$ Prepare a memo to the top management team at Rhinoceros explaining the advantages of a DBMS$.($Create names and positions for the Top management team$)$

$(17$ marks$)$

c$.$ Discuss the necessity of a database administrator and the job functions this person would perform