The open standard allows identity providers to pass authorization credentials to service providers. Easy to configure and easy to access. All applications and service providers are supporting SAML integration.

I have been using SAML protocol more than 2.5 years. Even still in my current organization using SAML protocol also. The best part about SAML I like is, it is very easy to integrate with applications. We can customise attribute as well. Suppose we dot get any requirement to add custom scope or extra attribute in the specific application, SAML protocol allows us to map that extra attribute under extended properties. In a single line I would say, SAML is very customisable protocol subjected to requirement.