What is the purpose of OutSystems' 'Error Handler'?

The 'Error Handler' in OutSystems serves the critical function of managing and logging runtime errors that occur during application execution. This tool is essential for developers as it enables them to capture errors in a way that can be tracked and analyzed, ultimately allowing for more robust application development and maintenance.

When an error occurs, the Error Handler can log the details of the error, which is invaluable for diagnosing issues and improving the application's reliability. By implementing a structured error handling process, developers can create more user-friendly applications as well; for instance, they can provide meaningful feedback to users instead of allowing the application to crash or fail silently. This logging capability helps developers to continuously improve the application by identifying recurring issues and implementing fixes based on real usage data.

The other options, while related to application development, do not accurately describe the purpose of the Error Handler. Access control or preventing users from interacting with the application is outside the scope of error handling. Similarly, optimization of application code and automating testing processes are separate concerns that deal with different aspects of software development. Thus, the Error Handler's primary role is intricately tied to error management and logging, reinforcing its importance in the overall development lifecycle.