Which of the following is a method for authentication in Appian?

In Appian, Local Authentication is a commonly used method for authenticating users. This approach involves managing user credentials directly within the Appian environment, where the application stores usernames and passwords. When users log in, the credentials they provide are verified against the stored information in Appian’s user database. This method is straightforward and allows fast access as the system doesn't need to reference external services for validation.

Local Authentication is particularly advantageous for applications with a smaller user base or when there are no specific requirements for advanced security protocols. It also facilitates the simplest implementation for environments where external identity management systems are not necessary or desired.

While other methods like OAuth and third-party authentication are useful for integrating with external identity providers or implementing more complex security requirements, Local Authentication remains a fundamental approach in Appian for direct user login capabilities.