Figure 5-2 summarizes
the typical user experience.
The variants of this pattern are virtually endless and are played
out on the Internet every day. Still, users can use the username
and password sign-in effectively, even on sites they have never
visited before. The inertia of this pattern is so strong that in initial
testing with Information Cards, users didn??™t even see the
alternative sign-in graphic (which was very large), skipping past
it to get to the traditional username and password sign-in.
Developing the New Authentication Experience
The ?¬?rst step in accepting Information Cards is to validate that
the client actually supports the capability to communicate with
Figure 5-2 Typical user experience in a site without support for
Information Cards
Most websites rely
on usernames and
passwords
JavaScript is a
scripting language
built in to browsers
279
the website using Information Cards. The radically different design
of different browsers on different platforms and devices
means that different vendors will have to implement their
Identity Selector in signi?¬?cantly different ways. This makes it
increasingly dif?¬?cult to detect the support for Information Cards
across all platforms.
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