What is a fundamental characteristic of applications in OutSystems?

The fundamental characteristic of applications in OutSystems being that they can be versioned reflects the platform's emphasis on continuous development and deployment practices. Versioning allows developers to manage different iterations of an application seamlessly. This means that new features, bug fixes, and enhancements can be implemented without disrupting the current production version of the application. It also allows teams to roll back to previous versions if needed, facilitating easier maintenance and upgrades while ensuring stability and reliability for users.

This capability supports Agile methodologies and DevOps practices, enabling teams to deliver value faster and respond to changes in requirements more effectively. Versioning is essential for maintaining a clear history of changes, enabling collaborative development, and ensuring that applications can evolve over time while keeping user experience consistent.

The other options do not align with the core attributes of OutSystems applications. Standalone applications are not a requirement, and many applications utilize integrations. The platform does allow applications to be built with a single module, although they can also consist of multiple modules for better organization and manageability. Lastly, tagging is a feature that helps in categorizing and searching for modules and applications within the platform, hence the statement that applications cannot be tagged is inaccurate.