What mode should be selected when dealing with potentially unreliable applications?

When working with potentially unreliable applications, selecting External mode is the appropriate choice. This mode is designed to handle situations where the reliability of the application being automated cannot be guaranteed.

External mode operates independently from the Blue Prism server's resource allocation and can continue executing even if the application fails or crashes. This makes it particularly suitable for applications that might not respond or behave inconsistently. It allows for greater flexibility in managing interaction with the unreliable application, as the operational logic can adjust to handle unexpected scenarios or failures more effectively.

This contrasts with the other modes. Normal mode typically assumes that the application is stable and will respond reliably, making it less suitable for unpredictable environments. Safe mode emphasizes error handling but is still reliant on the stability of the application to some extent. Secure mode primarily focuses on ensuring data security and might not provide the necessary allowances for unreliable applications, thus not addressing the key requirement of adaptability in this scenario.