Briefly explain prototyping and ONE (1) of its functions as a tool for system development. (3 Marks] Describe the difference between business process and business process model. (2 Marks] Explain ONE (1} main activity in the following phases of: (a) systems analysis (b) systems design (e) systems implementation (6 Marks) Differentiate between joint application development {JAB} and rapid application development (RAD). in terms of their: {a} objective {13) output (4 Marks) Ugo the following format to answer this question. ob'eetive I m U