Fred is constructing a web application that will receive data from a service provider. Which open standard should he incorporate into his application to enable it to function with numerous modern third-party identity providers?

SAML (Security Assertion Markup Language) is utilized by numerous identity providers to exchange authorization and authentication information with service providers. Although Kerberos and LDAP (Lightweight Directory Access Protocol) are commonly used within organizations, Fred is more likely to achieve success with SAML when dealing with popular web services. While New Technology LAN Manager (NTLM) is still in use for Windows systems, Kerberos is more commonly used for modern Windows domains, and would not be applicable in the context described here.