Midterm Test - Systems Analysis and Design

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Questions and Answers

List THREE (3) key principles of the Agile Methodologies?

The three key principles are: Collaboration, Iterative Development, and Customer Focus.

Identify the activities on the critical path. (Select all that apply)

C (correct)

E (correct)

D (correct)

F (correct)

Identify and describe THREE (3) activities in project identification and selection.

The three activities are: Defining the project scope, Identifying stakeholders, and Performing feasibility analysis.

Identify and describe the generic competitive strategies with examples.

The generic competitive strategies are: Cost Leadership, Differentiation, Focus (niche strategy), and Hybrid Strategy. Some examples may include: Cost Leadership strategy: Walmart, Differentiation strategy: Apple, Focus strategy: Red Bull, and Hybrid Strategy: Amazon. Signup and view all the answers

Assume a proposed system has a useful life of 5 years, one-time costs of 50,000, recurring costs of $25,000 per year, and tangible benefits of $45,000 per year. If the cost of capital is 10 percent, at what point does Break-even occur?

The break-even occurs in the 3rd year. Signup and view all the answers

An analyst comes to you to ask for some assistance with interview guidelines. What do you tell the analyst?

You should tell the analyst: Plan carefully and clearly define the goals of the interview, Prepare a list of questions beforehand, Establish rapport with the interviewee, Be an active listener, Ask open-ended questions, Use effective questioning techniques, Use a combination of structured and unstructured questions, Note down important information, Be respectful of the interviewee's time, Follow up with interviewee if necessary. Signup and view all the answers

What is prototyping? Identify FOUR (4) disadvantages to using prototyping as a requirements determination tool.

Prototyping is a technique used in system analysis and design for creating a working model or prototype of a system or software to understand user needs and to explore different design ideas and features. The prototype is then used to gather feedback and improve the design. Disadvantages of prototyping include time-consuming, can be expensive, might lead to scope creep, and may not be suitable for all types of projects. Signup and view all the answers

What are the FOUR levels of Data flow diagram (DFD)? What details of information system are represented at each one of these levels?

The four levels of Data flow diagram are: Level 0 - Context Diagram, Level 1 - High-Level Diagram, Level 2 - Detailed Diagram, Level 3 - Very Detailed Diagram. These diagrams are used to visualize how information flows within a system. The Context Diagram focuses on the overall system and its external interactions. As we move down the levels, the diagrams become progressively more detailed, focusing on specific processes and data flows. The Level 1 diagram breaks down the overall system into major processes or subsystems. The Level 2 diagram shows more detail about individual processes that were identified in the Level 1 diagram. Signup and view all the answers

Identify and describe THREE (3) errors (rule violations) on this DFD.

The errors in the DFD include 1. Data Store DF2 has no input flow or output flow. 2. Data flow DF5 is not connected to any process or data store. 3. Data flow DF6 is not connected to a process. Data flows must always end or start at a process. Signup and view all the answers

Study Notes

Midterm Test - Systems Analysis and Design

Test Date: 19 August 2020
Time: 6:00 PM - 8:00 PM
Duration: 2 hours
Course: TSE2251/TIS2211 – Systems Analysis and Design
Total Marks: 50
Instructions: Answer all questions. All questions carry equal marks.

Question 1

Agile Methodologies (3 marks): List three key principles (details not provided).
Project Critical Path (7 marks): Determine the critical path for a project with 6 activities, using provided table. Activities include: A, B, C, D, E, and F. The table provides preceding activities, expected times (weeks), and time limits.

Question 2

Project Identification/Selection Activities (4 marks): Identify and describe three activities in project identification & selection.
Competitive Strategies (6 marks): Identify and describe generic competitive strategies with examples.

Question 3

Break-Even Analysis (10 marks): Calculate the break-even point for a proposed system. The details include: useful life (5 years), initial costs ($50,000), yearly recurring costs ($25,000), tangible benefits ($45,000), and cost of capital (10%).

Question 4

Interview Guidelines (6 marks): How to assist an analyst with interview guidelines.
Prototyping Disadvantages (4 marks): Identify four disadvantages of using prototyping as a requirements determination tool.

Question 5

Data Flow Diagram Levels (4 marks): Name the four levels of Data Flow Diagrams (DFD) and explain the information system details represented in each level.
DFD Errors (6 marks): Identify and describe three rule violations (errors) in the provided Data Flow Diagram (DFD).

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Description

Take our midterm test on Systems Analysis and Design, covering key concepts such as Agile methodologies, project critical paths, and competitive strategies. This test is designed to assess your knowledge and analytical skills in project management and design principles.