From the RA21 Website:
RA21, the STM and NISO initiative which aims to identify best practices for adopting federated identity in order to streamline the user experience for access to subscribed content outside institutional IP domains, has completed the evaluation of two pilots (the WAYF Cloud and the Privacy Preserving Persistent WAYF (P3W)) offering alternative technical approaches to identity provider persistence.
While both the cloud based and the alternative browser based pilots were successful in testing technical approaches to identity provider persistence, the browser based Privacy Preserving Persistent WAYF (P3W) solution has been selected to take forward and develop into an operational service.
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