For which requirement must you configure a validate rule in Dev Studio?

To determine the requirement that necessitates the configuration of a validate rule in Dev Studio, it is essential to focus on the specific scenario described. The requirement stating that the "Date of service field value must be less than 15 days for critical issues" clearly indicates a conditional validation based on the classification of the issue (critical versus non-critical).

In this case, a validate rule is essential because it enforces a specific logic that must be met: the date of service for critical issues cannot exceed a certain threshold (15 days). This type of conditional logic is best implemented through a validate rule, as it ensures that the system consistently checks this condition each time a date is entered or modified in the application.

The other scenarios do not present similar requirements that necessitate a validate rule. Allowing future dates is a straightforward acceptance condition and does not require validation. The requirement to ensure a value is less than 30 days may be implemented through other means and does not have the same level of conditional specificity tied to the classification of the issue as the critical issues do. Lastly, if validation is deemed unnecessary for critical issues, it would not warrant a validate rule. Therefore, the requirement that demands a validate rule relates specifically to the need for situational checks