===== PLEASE ANSWER ALL THE 3 QUESTION =======

SYSTEM ENGINEERING CSE401 Wednesday, Nov 14, 2018 Q1. [5 Marks | a) In your own words, describe what is meant by the work breakdown structure. 1 Mark ] b) Explain why a network diagram cannot contain cycles. A cycle is a sequence of activities where you can travel back to an activity already visited. [ 2 Mark ] Describe the advantages and disadvantages of the network diagram and Gantt chart representations for a project. [ 2 Mark ] c) Q2.I Marks 5 ] Consider the set of activities, duration (in days), and predecessors for a project given below 1. 2. 3. Develop a network diagram representation for the project. [ 3 Marks ] Determine the critical path. [ 0.5 Mark ] Determine the float time for all activities that are not on the critical path. [0.5 Mark ] Q3. I 5 Marks Assume that the following data has been determined for the development and sale of a new digital thermometer for home use: development cost -$250,000, production investment $500,000, annual production volume 20,000 units per year, and sales lifetime = 7 years. Assuming a variable production cost of $5 per unit, determine a) the sales price necessary to break even within 2 years, and [ 4 Mark ] b) the profit expected over the estimated sales lifetime. 1 Mark ] SYSTEM ENGINEERING CSE401 Wednesday, Nov 14, 2018 Q1. [5 Marks | a) In your own words, describe what is meant by the work breakdown structure. 1 Mark ] b) Explain why a network diagram cannot contain cycles. A cycle is a sequence of activities where you can travel back to an activity already visited. [ 2 Mark ] Describe the advantages and disadvantages of the network diagram and Gantt chart representations for a project. [ 2 Mark ] c) Q2.I Marks 5 ] Consider the set of activities, duration (in days), and predecessors for a project given below 1. 2. 3. Develop a network diagram representation for the project. [ 3 Marks ] Determine the critical path. [ 0.5 Mark ] Determine the float time for all activities that are not on the critical path. [0.5 Mark ] Q3. I 5 Marks Assume that the following data has been determined for the development and sale of a new digital thermometer for home use: development cost -$250,000, production investment $500,000, annual production volume 20,000 units per year, and sales lifetime = 7 years. Assuming a variable production cost of $5 per unit, determine a) the sales price necessary to break even within 2 years, and [ 4 Mark ] b) the profit expected over the estimated sales lifetime. 1 Mark ]