By 2016, one in four purchases of identity and access management software will be an IdAS. The market for better SSO services is expanding because vendors have laid much of the technological tracks in the form of integrations between cloud services and SSO technology. Smaller companies with a growing investment in software-as-a-service (SaaS) and that are having a hard time finding people to manage an IAM solution internally will typically choose an IDAS. Security Assertion Markup Language (SAML) used for online authentication has become a mature standard.”]
Source: https://www.darkreading.com/cloud/single-sign-on-increasingly-connected-in-the-cloud