A choice of providers
That also supports identiﬁer
button driven sign-in
• Multiple brand afﬁnities:
“I trust Google and Yahoo!”
• Unclear which will choice provide the best
experience. Brand is king.
Return user experience
Can be optimized by remembering a user’s provider.
But, the choice will be lost when switching computers or browsers
Changing providers on
the return visit is bad.
Many users do not understand that changing from
Google to Yahoo will sign them in to a different account.
Cannot remove choices
Anyone who has used that provider won’t be able to
Every RP has different needs
and a different audience...