This video shows how Evidian Identity and Access Management implements cost efficient provisioning on the example of Salesforce just-in-time user provisioning.
This feature ensures that accounts in cloud applications are created only when users need.
The just-in-time user provisioning feature is not limited to Salesforce and can be applied to other applications.
See also this video: Web Access Manager - Secure SAML authentication on SalesForce with Evidian WAM, a global solution for Identity Federation and Web SSO [+]