What is the primary purpose of validation in Pega?

The primary purpose of validation in Pega is to ensure data integrity and accuracy. When data is entered into a system, it is crucial that this information meets specific criteria and formats, otherwise the correctness and reliability of the data can be compromised. Validation checks help to catch errors, such as invalid formats, missing required fields, or data that does not adhere to business rules. By implementing these checks, the application can maintain accurate records and facilitate informed decision-making based on reliable data.

While other options, such as optimizing system performance, streamlining user interactions, and enforcing application security, are important aspects of application development, they do not specifically address the core function of validation, which is focused on maintaining the correctness and appropriateness of the data entered into the system. Data integrity is essential for overall application efficacy, as flawed data can lead to erroneous outputs and decisions.