What is the primary goal of using Declare Expressions in Pega applications?

The primary goal of using Declare Expressions in Pega applications is to reduce the need for manual data entry. Declare Expressions allow for calculations and data transformations to be automated within the application. By using these expressions, Pega can automatically derive values based on other values in the system, thereby minimizing the need for users to input repetitive or derived data manually. This streamlining of data input not only enhances user productivity but also increases accuracy as it reduces the chances of human error.

For example, if a user needs to calculate a total price based on individual item prices and quantities, a Declare Expression can automate that calculation. As a result, the user only has to enter the item prices and quantities, making the application more efficient and user-friendly. Other options, while potentially relevant in different contexts, do not align with the core function of Declare Expressions in reducing manual data entry.