What type of variables can represent user selections in Rapid Response workbooks?

In Rapid Response workbooks, user selections are represented by system variables. System variables are predefined variables that are automatically populated with values based on the context of the data and the specific user interactions within the workbook. They play a crucial role in enabling dynamic updates and ensuring the data reflects the user's selections accurately.

Choosing system variables allows for a seamless integration of user input and facilitates the real-time interaction capabilities of the workbook. This enhances the user's ability to explore different scenarios and make informed decisions based on their selections, as these variables can interact with underlying data models in a fluid manner.

Other types of variables, such as function variables, dynamic variables, and static variables, do not provide the same capability for capturing user-selected data in a way that directly influences the output of the workbook. Function variables, for instance, are typically tied to specific calculations or functions rather than user selections. Dynamic variables might change based on conditions but are not specifically designated for user interactions. Static variables remain constant and do not adapt to user input, thus lacking the flexibility needed in this context.