SQA National 5 Computing Science Practice Exam

Using modularity in large applications significantly simplifies troubleshooting and debugging. When an application is broken down into smaller, self-contained modules or components, it becomes easier to isolate and identify the source of errors or bugs. Each module can be developed, tested, and debugged independently, allowing developers to focus on small pieces of code rather than the entire system. This modular approach also means that if a specific module has issues, it can be fixed without affecting the rest of the application, speeding up the debugging process and reducing the complexity involved in maintaining large codebases.

Choosing modularity helps create a clearer structure in the application, which can also make it easier for developers to understand the relationships between different parts. This organized approach leads to better maintainability and agility in making changes or enhancements, as adjustments to one module can often be made without extensive modifications to others.

While there are benefits to documentation and team size considerations, and complexity might be a factor in some contexts, the main advantage of modularity is its strong impact on simplifying the debugging process, making it the most relevant choice in this case.