This document contains comprehensive revision notes from Lecture 20 of the CO2401 course on Software Development. The lecture is designed to prepare students for their exams by reviewing key concepts and topics that are likely to be tested.
CO2401: Software Development
Lecture 20 - Revision
Topics Likely to be on the Exam
1. Core Concepts:
o System vs. User Requirements
o Key Software Development Concepts:
Abstraction: Using the right level of detail to hide irrelevant
information.
Modularity: Structuring systems into interacting
components (modules).
Coupling and Cohesion:
Coupling: Links between modules (loose coupling is
desirable).
Cohesion: Simplicity and focus of module purposes
(high cohesion is desirable).
2. Verification & Validation (V&V):
o Verification: Are we building the product right? Ensures the
software meets its specifications.
o Validation: Are we building the right product? Ensures the software
meets customer needs.
3. Domain Modelling:
o Noun Phrase Analysis: Identifying candidate classes and
attributes.
o Domain Class Diagrams: Static structure of systems showing
classes and their relationships.
o Sequence Diagrams: Dynamic behavior showing object
interactions over time.
4. Testing Techniques:
o Automated Static Analysis: Tools that check code for potential
issues before execution.
o Code Inspection: Manual review of source code for errors.
o Test Case Design: Creating effective tests, including equivalence
partitioning and boundary testing.
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