Which of the following is NOT a type of Appian Authentication?

Understanding the types of authentication available in Appian is crucial for application security and user management. Appian supports various authentication methods, and in this context, it is helpful to recognize what each method entails.

LDAP (Lightweight Directory Access Protocol) is a widely-used standard for accessing and maintaining distributed directory information services. In Appian, it allows for authentication against external directory services which can streamline user management by leveraging existing user databases.

PIEE (Procurement Integrated Enterprise Environment) is specific to certain enterprise solutions, where identities might need to be integrated with procurement systems. It's an Appian-specific authentication method that caters to specialized business requirements.

Native authentication in Appian refers to the built-in capability for managing usernames and passwords directly within the Appian platform. This method facilitates straightforward, local user management without needing external tools.

OAuth, on the other hand, is an authorization framework primarily designed for allowing third-party services to exchange user information without sharing passwords. While OAuth is a popular method used for secure authorization across many platforms, it is not categorized as a distinct authentication type within Appian itself.

Thus, the correct identification of OAuth as not being a specific type of Appian authentication highlights its role as an authorization method rather than an authentication method, clarifying its distinction