Sequence Model and Diagram Quiz
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Questions and Answers

What is the primary purpose of a sequence diagram?

  • To define the number of participating objects between two classes
  • To model the interactions between actors and objects in a system (correct)
  • To show the classes in a system and their associations
  • To represent inheritance relationships between classes

    • Which of the following is NOT a key component of a class in object-oriented programming?

  • Operations
  • Relationships
  • Attributes
  • Inheritance (correct)

    • In a class diagram, what do associations represent?

  • The inheritance hierarchy between classes
  • The number of participating objects between two classes
  • The composition of classes, where one class is part of another
  • The links between classes that define how they interact (correct)

    • What is the purpose of multiplicity (cardinality) in a class diagram?

    <p>To define the number of participating objects between two classes</p> Signup and view all the answers

    In the example provided, what type of relationship is described between corporate customers and personal customers?

    <p>Inheritance</p> Signup and view all the answers

    What is the difference between a composite and an aggregation relationship in a class diagram?

    <p>Composite relationships indicate that the part cannot exist without the whole, while aggregation relationships indicate the part can exist independently</p> Signup and view all the answers

    In the CompanyXYZ example, which of the following statements is true?

    <p>The class diagram should have two classes: Customer and Order.</p> Signup and view all the answers

    In the University System example, which of the following statements is incorrect?

    <p>A student can be enrolled in multiple courses in the same semester.</p> Signup and view all the answers

    Which of the following diagrams is suitable for representing the flow of control in a program?

    <p>Flowchart diagram</p> Signup and view all the answers

    What is the purpose of acceptance testing?

    <p>To validate that the software meets the requirements and is acceptable for delivery.</p> Signup and view all the answers

    Which of the following testing techniques is used to evaluate the software's behavior under unfavorable conditions?

    <p>Stress testing</p> Signup and view all the answers

    What is the purpose of sequence diagrams in software design?

    <p>To model the interactions between objects over time.</p> Signup and view all the answers

    Study Notes

    Sequence Model/Diagram

    • A sequence diagram is used to model the interactions between actors and objects in a system.
    • It provides a clear view of the steps in a use case, showing the sequence of interactions.
    • Examples of sequence diagrams include:
      • Login sequence diagram
      • ATM machine sequence diagram
      • Sequence diagram for Dinner Now System

    Class Diagram

    • A class diagram is used to show the classes in a system and their associations.
    • A class is defined as having:
      • Attributes (member variables)
      • Operations (member functions)
      • Relationships with other classes
    • Associations link classes together and are usually named.
    • Types of associations include:
      • Inheritance (e.g., CompanyXYZ has two types of customers: corporate and personal)
      • Composite (e.g., something is a part of a whole but cannot survive on its own)

    Class Diagram Components

    • Multiplicity (cardinality) defines the number of participating objects between two classes.
    • Relationships between classes include:
      • Inheritance (e.g., Bank Account scenario)
      • Composition (e.g., CompanyXYZ has two types of customers: corporate and personal)

    Class Diagram Example

    • Example: CompanyXYZ has two types of customers: corporate customers and personal customers.
    • All customers can place an order, and every order is placed by a customer.
    • Draw the class diagram for this scenario.

    Class Diagram Example: University System

    • A university consists of schools, each containing departments.
    • Each department offers courses in a semester, which are taught by instructors.
    • Students are enrolled in courses, which are taught in a semester.
    • Build the class diagram to represent the university system.

    Group Assignment

    • Submit the following design models for the product (software application):
      • Use case diagrams (at least 2)
      • Flowchart diagram
      • Sequence diagrams (at least 2)
      • Class diagram
    • Provide a brief description for each diagram.

    Reading Assignment

    • System Testing includes:
      • Black box testing
      • White box testing
      • Unit testing
      • Integration testing
      • System testing
      • Acceptance testing
      • Stress testing
      • Regression testing

    Final Project

    • Present the final project on March 4, 2024.

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    Quiz Team

    Description

    Test your knowledge on sequence diagrams used to model interactions between actors and objects in a system. Understand the steps in a use case and the sequence of interactions. Topics include login, ATM machine operations, and system interactions.

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