When might a user be prompted with valid values in list displays?

A user is presented with valid values in list displays primarily based on selections made in previous lists because this functionality enhances the usability and efficiency of the interface. When a user makes a selection from a previous tier or category, the subsequent lists can filter out irrelevant options, displaying only those values that are logically connected or applicable to the user's choice. This context-driven presentation of data helps in guiding users through a more streamlined decision-making process, as they can quickly find and select the most appropriate options without sifting through unrelated entries.

This approach is particularly beneficial in software environments where data relationships can be complex, and it allows users to leverage previous inputs to refine their current choices. By taking into consideration prior selections, the software is ensuring an intuitive navigation experience that minimizes errors and enhances workflow efficiency.