Sure, countless libraries will ease the burden by
supplying you with ready-to-use controls, page frameworks, and
authentication mechanisms. The problem lies exactly in the
adjective countless.Everybody gives a solution tailored to a
speci?¬?c platform or context, and the result is that all hope of
consistency and prompt interoperability is lost. There are no
reasons for rating one solution superior to another. They all
make sense for their speci?¬?c context, so there is no selective
pressure that would lead to convergence and hence little hope
that a de facto standard would spontaneously emerge. This is
especially true on the Internet where the requirements, technical
capabilities, infrastructure, business drivers, and so on all vary
widely and unpredictably. The consequences of this fact go
beyond the sheer technical considerations. The way in which
user interaction is negatively in?¬‚uenced is explained in the section
???The Babel of Web User Interfaces.???
The lack of a standard
makes authentication
a feature at
the application
level
54 The Problem
All of what we??™ve described would not be that bad ifusernames
and passwords were a viable option for Internet authentication.
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