Security Assertion Markup Language is an XML-based data format for exchanging authentication information between a service provider and an identity provider. In an Informatica domain, the Informatica web application is the service provider.
If you enable a domain to use SAML authentication, all web applications that run in the domain use the identity provider you configure in the domain by default. However, you can configure web applications that run in a domain to use different identity providers. For example, you might configure Informatica Administrator to use AD FS as the identity provider, and configure Informatica Analyst to use PingFederate as the identity provider.