Single-Sign-On (SSO) makes it possible to obtain access to multiple services and applications by a single authentication. This makes separate registrations for different services superfluous. It enables users to work more efficiently, and they only need to remember one password. For a greater degree of security, this one registration may also be combined with two-factor authentication.
Crucial factors in selecting the right SSO solution are its supported standards, directory services (such as Active Directory or OpenLDAP), applications and web applications. We would be glad advise you based on your requirements.