Question 1

1. Identify the main phases of the systems development life cycle (SDLC) and in your “own words” briefly describe their purposes.

2. List the three (3) triggers for initiating a systems development project, and give an example of each.

3. Many systems development projects fail through being over time, over budget, or notmmeeting the users’ requirements. What are some of the reasons why this happens?

4. What is a critical path? Why is it important for the project manager to watch the tasks onmthe critical path?

5. What is meant by an iterative approach to systems development? Why do many current methodologies employ an iterative approach.

Question 2

1. Answer the following questions about the diagram below:

i. Name the type of model shown.
ii. Name EACH of the types of symbol used in the model and briefly explain what they represent.
iii. Explain what the model tells us.

2. Answer the following questions about the diagram below: (7 marks)

i. Name the type of model shown.

ii. Name EACH of the types of notation used in the model and briefly say what they represent.

iii. Explain what the model tells us.

3. Draw a use case diagram that shows four (4) examples of use cases that might apply to the actor “Student” using a university Online Enrolment System. Make sure to follow the best practices when developing the diagram.

4. One decision for acquiring the new system is whether to Buy or Build it. Describe two (2) advantages and two (2) disadvantages of EACH of these alternatives.

Question 3 

1. Name and describe the three main ways in which a new system can be deployed. In your own words, explain what should be taken into account in choosing a deployment option.

2. Examine the Microsoft Project screenshot below and explain:

i. What slack time is and which tasks in the project have usable slack time.

ii. Why some tasks are shown in red.

iii. What the diamond symbols in ( ) in the chart are called and represent.

3. Two important concepts in user interface design are affordance and visibility. Briefly define each of these concepts and give an example of each.

4. Briefly describe four (4) different types of testing that are carried out during system deployment and implementation.