Domain Model Overview

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Questions and Answers

What is the main purpose of using System Sequence Diagrams (SSDs) in use case realization?

  • To visualize the sequence of events that occur during system functionality implementation (correct)
  • To represent specific object instances and their relationships
  • To define the preconditions and postconditions of a method
  • To identify the classes and objects needed for implementing the system functionality

What do preconditions specify in an operation contract?

  • The conditions that must be true before the operation is executed (correct)
  • Constraints on the state of the system during method execution
  • The specific instances of objects and their relationships
  • The expected state of the system after the method has executed

Which OOA artifact defines the behavior of a method or operation of a class?

  • Operation Contracts (correct)
  • Unified Process
  • State Models
  • Object Diagrams

What is the role of Operation Contracts in object-oriented analysis and design (OOAD)?

<p>To verify that a method is implemented correctly (B)</p> Signup and view all the answers

How do Postconditions differ from Preconditions in an operation contract?

<p>Postconditions specify the conditions that must be true after the method has executed, while Preconditions specify conditions before execution. (D)</p> Signup and view all the answers

In operation contracts, what do Invariants specify?

<p>The properties that should be preserved or maintained during method execution (D)</p> Signup and view all the answers

What is the purpose of Operation Contracts in generating test cases?

<p>To ensure that a method behaves correctly in various situations (D)</p> Signup and view all the answers

How do object diagrams differ from system sequence diagrams (SSDs) in representing system functionality?

<p>Object diagrams represent specific instances of objects and their relationships, while SSDs visualize sequence of events during system functionality implementation. (A)</p> Signup and view all the answers

Which element in an operation contract defines the name and parameters of the operation?

<p>Header (A)</p> Signup and view all the answers

What do preconditions specify in an operation contract?

<p>The conditions that must hold true before a method is executed (C)</p> Signup and view all the answers

Which part of an operation contract defines the name and parameters of the operation?

<p>Header (D)</p> Signup and view all the answers

How do Invariants differ from Preconditions in an operation contract?

<p>Invariants specify the properties that should be preserved during method execution (A)</p> Signup and view all the answers

What is the main purpose of an Operation Contract in object-oriented analysis and design (OOAD)?

<p>To specify the behavior of a method or operation of a class (A)</p> Signup and view all the answers

What do Postconditions specify in an operation contract?

<p>The conditions that must hold true after a method has completed successfully (D)</p> Signup and view all the answers

How do System Sequence Diagrams (SSDs) help in use case realization?

<p>By representing the specific implementations of system functionality (C)</p> Signup and view all the answers

Why are Operation Contracts considered essential in object-oriented analysis and design (OOAD)?

<p>To identify preconditions and postconditions for a method or operation (A)</p> Signup and view all the answers

In object diagrams, what do System Sequence Diagrams (SSDs) help represent?

<p>The specific instances of objects and their relationships (B)</p> Signup and view all the answers

What is represented by an SSD in object diagrams?

<p>The different files stored on a storage device and their relationships to users and folders (A)</p> Signup and view all the answers

What is the role of SSDs in visualizing specific object instances?

<p>To visualize object instances and their attributes and relationships (B)</p> Signup and view all the answers

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