Which of the following is a necessary step when generating a new data source?

Selecting a data source is a fundamental step when generating a new data source because it establishes the foundation for how data will be accessed and utilized within the application. By choosing a specific data source, you effectively define the origin of the data that your app will interact with. This could involve selecting a database, an external data service, or a cloud-based storage solution.

Once the data source is selected, further configurations can be made, such as defining record fields, setting up relationships, and implementing security measures. However, none of these subsequent steps can be performed without first establishing which data source will be leveraged. Therefore, selecting a data source is essential for successfully creating and managing data structures in Appian applications.