Systems Development Tools and Techniques Modeling
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Questions and Answers

What is the purpose of data flow diagrams in systems development?

  • Describing required system information
  • Depicting telecommunication link design and protocols
  • Outlining logic for programmers to write code modules
  • Illustrating data structure and design (correct)

    • Which system development tool is used to outline logic for programmers to write code modules?

  • Object model
  • Data model
  • Process model (correct)
  • Network model

    • In systems development, what does a network model depict?

  • Data structure and design
  • Telecommunication link design and protocols (correct)
  • Objects combining data and processes
  • System information

    • What is the primary role of data flow diagrams in modeling?

    <p>Examining input, output, and user interface</p> Signup and view all the answers

    Which technique is NOT typically used in data flow diagrams?

    <p>Business model</p> Signup and view all the answers

    What aspect of systems do object models describe?

    <p>Objects combining data and processes</p> Signup and view all the answers

    What is one advantage of Computer-Aided Systems Engineering (CASE) Tools?

    <p>Identifies needed changes and refines requirements</p> Signup and view all the answers

    Which development methodology begins with the organization's operational level as the core?

    <p>Bottom-Up</p> Signup and view all the answers

    In the Integrated Approach, which method is primarily used for initial planning?

    <p>Top-Down</p> Signup and view all the answers

    What does Top-Down methodology utilize as the system base?

    <p>Executive management level</p> Signup and view all the answers

    Which approach ensures proper alignment with operational level requirements in the Integrated Approach?

    <p>Bottom-Up</p> Signup and view all the answers

    What is a characteristic of Structured Analysis?

    <p>Primarily uses graphical understandable system specifications</p> Signup and view all the answers

    What is a disadvantage of the Waterfall Model in the System Development Life Cycle?

    <p>Costly to accommodate changes once underway</p> Signup and view all the answers

    Which model in the System Development Life Cycle reflects ongoing dialogue among users, managers, and systems developers?

    <p>Interactive Model</p> Signup and view all the answers

    In the Waterfall Model, how do the results of each phase move forward?

    <p>Results flow sequentially into the next phase</p> Signup and view all the answers

    Which of the following is NOT an advantage of the Waterfall Model?

    <p>Flexibility in changing requirements</p> Signup and view all the answers

    What makes the Waterfall Model best suited for well-understood requirements?

    <p>Sequential flow of results from one phase to another</p> Signup and view all the answers

    Which model allows planning, analysis, and design to interact continuously before implementation and operation?

    <p>Interactive Model</p> Signup and view all the answers

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