What is the purpose of adding aliases for field values in Tableau?

Adding aliases for field values in Tableau serves the primary purpose of making fields easier to understand for users. This practice enhances the overall user experience by allowing data to be represented in more recognizable or user-friendly terms. For example, if a field contains technical terminology or codes that may not be readily understood by all users, creating an alias provides a clearer, more intuitive label that makes it easier for non-technical users to engage with the data.

By improving the clarity of field names, aliases help facilitate better communication and understanding of the data being presented, leading to more informed decision-making based on the visualizations created in Tableau. This capability is particularly useful when sharing dashboards with various stakeholders who may have different levels of data literacy. The other options, while they might touch on aspects of data interaction in Tableau, do not accurately reflect the primary utility of aliases in this context.