Object-Oriented Programming: Associations in a Learning Management System
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Questions and Answers

What is the primary purpose of associations in an OO solution?

  • To enable objects to interact with each other (correct)
  • To create a hierarchy of objects
  • To define the properties of an object
  • To implement inheritance

    • What type of variables are used to implement associations?

  • Static variables
  • Global variables
  • Class level variables
  • Instance level variables (correct)

    • What can be said about the associations between objects in an OO solution?

  • They are fixed and cannot change over time
  • They are only applicable to classes, not objects
  • They are only applicable to specific objects
  • They can change over time (correct)

    • What is the relationship between associations between objects and associations between classes?

    <p>Associations between objects can be generalized as associations between classes</p> Signup and view all the answers

    What is navigability in the context of associations?

    <p>The ability of an object to know about another object in an association</p> Signup and view all the answers

    What is an example of an association in an OO solution?

    <p>A Course object having a reference to a Student object</p> Signup and view all the answers

    What is the term used to describe the concept of which object in an association knows about the other object?

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

    What is the characteristic of unidirectional navigability in an association between two objects?

    <p>One object has a reference to the other, but not vice versa</p> Signup and view all the answers

    What is the result of having two unidirectional associations in opposite directions between two objects?

    <p>A unidirectional association is created</p> Signup and view all the answers

    In the code, what is the relationship between the Person and Cat classes?

    <p>Bidirectional between Person and Cat</p> Signup and view all the answers

    What is the outcome when a Person object p has a Cat object c as its pet?

    <p>Both p and c have references to each other</p> Signup and view all the answers

    What can be inferred about the objects b and r in the association between the Box and Rope classes?

    <p>b and r have references to each other</p> Signup and view all the answers

    What is the primary purpose of a brainstorming session?

    <p>To generate a large number of diverse and creative ideas</p> Signup and view all the answers

    What is the main characteristic of an 'Essential' requirement in the categorization scheme?

    <p>The product must have this requirement fulfilled</p> Signup and view all the answers

    What happens to requirements that are considered 'out of scope'?

    <p>They are discarded</p> Signup and view all the answers

    What is the purpose of categorizing requirements in a software development project?

    <p>To prioritize requirements based on stakeholder input</p> Signup and view all the answers

    What is the characteristic of a 'Typical' requirement in the categorization scheme?

    <p>Most similar systems have this feature</p> Signup and view all the answers

    What is the goal of stakeholders in defining the meaning of each level in the scale?

    <p>To define the meaning of each level in the scale for the project at hand</p> Signup and view all the answers

    What is the primary purpose of viewing the forum post count of each student?

    <p>To determine the activity level of students in the forum</p> Signup and view all the answers

    What is the main difference between user stories and traditional requirements specifications?

    <p>The level of detail provided</p> Signup and view all the answers

    What is the benefit of using user stories in software development?

    <p>They help to shift the focus from writing to discussing the features</p> Signup and view all the answers

    What is the purpose of estimating the size of a user story?

    <p>To estimate the effort required to implement the user story</p> Signup and view all the answers

    What type of requirements can be captured using user stories?

    <p>Both functional and non-functional requirements</p> Signup and view all the answers

    When are the detailed requirements of a user story discussed?

    <p>During the implementation phase</p> Signup and view all the answers

    What is the primary benefit of using user stories during the early stages of requirements gathering?

    <p>To ensure a systematic approach to identifying user requirements</p> Signup and view all the answers

    What is the purpose of Step 0 in the recipe for brainstorming user stories?

    <p>To clear the mind of preconceived product ideas</p> Signup and view all the answers

    What is the main characteristic of user stories that makes them useful for recording requirements?

    <p>Their lightweight and flexible nature</p> Signup and view all the answers

    What is the main benefit of defining the target user as a persona in the recipe for brainstorming user stories?

    <p>To understand the user's work patterns and environment</p> Signup and view all the answers

    What is the focus of the early stages of requirements gathering?

    <p>Figuring out the problem (i.e., user requirements)</p> Signup and view all the answers

    What is an example of a non-functional requirement (NFR) captured as a user story?

    <p>As a user, I want to be able to experience reasonable response time from the website.</p> Signup and view all the answers

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