18 Questions
What is the main characteristic of structured data coupling?
Data passed via parameter lists is structured
Which of the following best describes structured data coupling?
Data formats are controlled by receiving module
What is the goal of structured data coupling?
Allow the receiving module to structure the data
How does structured data coupling differ from simple data coupling?
In simple data coupling, the receiving module structures the data
Which type of coupling allows the receiving module to structure the data?
Structured data coupling
In structured data coupling, what does the sending module keep control of?
Data formats
Which type of coupling is exemplified by module A controlling how functions in module B will execute?
Control coupling
What is a major issue with global-data coupling as described in the text?
It leads to unwanted side-effects
Why is the use of global variables criticized?
They are prone to causing side-effects
What is the term used in agile methodologies for simplifying part of a program while working on it?
Refactoring
In the context of design modules, what does 'coupling' refer to?
The degree to which modules are connected through data sharing
What is the main difference between encapsulation and information hiding as per the text?
Encapsulation wraps data and behaviors together, while information hiding controls data visibility
Why is maintaining loosely coupled modules considered advantageous?
It minimizes the maintenance burden and error likelihood
Why is information hiding considered an important feature of modules in programming?
To protect data from unwanted side-effects
Why does the text emphasize that control of data should remain with the module that understands how to manipulate it best?
To prevent unwanted side-effects from external modules
What happens when modules are tightly coupled in a design?
Changes in one module often require changes in another
How do loosely coupled modules in a design interact?
Only through their interfaces, passing necessary data between procedures
What is the primary advantage of having a simple and understandable design in software development?
Ease of maintenance and amenable to change
This quiz covers various forms of coupling in software engineering, focusing on tight coupling and global-data coupling. Learn why tightly coupled modules can lead to undesirable side effects and violate encapsulation principles.
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