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CO2401 Software Development Lecture 6 Notes
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  • Course
  • Software Development (CO2401)
  • Institution
  • University Of Central Lancashire Preston (UClan)

This document contains detailed notes from Lecture 6 of the CO2401 course on Software Development. The lecture focuses on use case realization, specifically through the use of interaction diagrams, which are essential for modeling the dynamic behavior of a system and how it achieves the functionali...

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Document information

  • August 22, 2024
  • 4
  • 2023/2024
  • Class notes
  • Muhammad alhassan
  • All classes

Subjects

  • computer science
  • software
  • development
  • university
  • computer
  • 2nd year
  • efficiency
  • lecture
  • cs
  • notes

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  • University of Central Lancashire Preston (UClan)
  • Unknown
  • Software Development (CO2401)
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CO2401: Software Development
Lecture 6



Introduction to Use Case Realisation
1. Purpose
o Use Case Realisation: Involves modelling how a system realizes
each use case scenario by showing how objects interact to achieve
functionality.
o Domain Class Diagrams: Show the static structure of the system,
such as types of things and their relationships, but do not show
object collaboration.


2. Interaction Diagrams
o Interaction diagrams illustrate how objects exchange messages to
coordinate actions. They are crucial for understanding the dynamic
behaviour of the system.
o Types of Interaction Diagrams:

 Sequence Diagrams
 Communication Diagrams
Sequence Diagrams
1. Overview
o Sequence Diagrams: Capture the dynamic view of a system,
showing interactions among entities over time. They help identify
the behaviour that needs to be implemented in code.
o Key Components:

 Participants: Objects involved in the interaction.
 Lifelines: Represent the object's existence over time.
 Messages: Arrows showing communication between objects.
 Activation/Execution Specifications: Rectangles showing
when an object is performing an action.

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