April 18, 2005
Liberty Alliance, the global
consortium for open federated identity standards and identity-based Web
services, announced the release of interface specifications that
support presence, contact book and geo-location Web services.
Deployable on Liberty's Identity Web Services Framework (ID-WSF), these
specifications offer new application functionality to enterprises and
service providers, as well as privacy, personalization and security
benefits to users.
"Identity is a requirement for successful Web services. Unless identity can be established and secured, no enterprise is going
to be comfortable using Web services beyond their organizational borders," said George Goodman, president of Liberty Alliance
and director of Intel's Platform Virtualization Lab. "As a base framework, Liberty ID-WSF provides a proven blueprint for
companies to extend their architectures to a federated Web services model, allowing trusted partners, customers and suppliers
to access key resources and information across corporate boundaries. These new service interface specifications make this
framework even more valuable for delivering more personalized services, with strong security and privacy mechanisms."
LAP Services support Privacy, Security and Seamless Interaction
Contact Book, Geo-location and Presence represent the first service
interface specifications developed by the Services Group, an expert
group within the Liberty Alliance that develops specifications that
exploit Liberty ID-WSF. The interfaces specified by this group are
narrowly defined to address the needs of specific industries,
applications and business models, in a rapid development fashion:
The three service interfaces are designed to function individually or in a seamless unified fashion. As with ID Personal Profile
and ID Employee Profile, previously released service interfaces available with the first version of ID- WSF, each has been
created to enhance user control of invoked Web services, in a privacy-respecting manner. Each has been created to enhance
user control of invoked Web services, in a privacy-respecting manner.
For example, a consumer might use the Geo-location service via a
mobile phone when looking for movie locations. The service provider
simply "recognizes" where the user is situated and delivers the info.
The user may then choose to let her friends know where she is via the
Contact Book service and send out a single message to 20 people. The
Contact Book service may then invoke Presence to determine how the
user's friends want to be contacted (i.e. via mobile phone, laptop,
etc.). Some may indicate they want to be contacted via mobile phone.
Others may want to be contacted via laptop. Presence takes care of
sending the messages to the designated devices. Contact book could also
be used to invoke Geo-location if the user wants to reach friends
within a certain radius.
From a personalization standpoint, these services offer rich end
user benefits in being able to directly affect and control information
provided. From a privacy standpoint, checks and balances are also in
place. For example, with the Geo-location service, native privacy
control measures exist which offer user-friendly interfaces and
control. Through a user Interaction Service, a Location Provider can
request permission to disclose a user's location on the fly. This
reassures users that sensitive data is properly protected.
"Web service application interface standards are an important step
in helping organizations deploy more secure and functional Web
services," said Ray Wagner, vice president of Gartner Research. "These
specifications could allow service providers to offer users more
options for managing identity information within a secure Web services
The three service interface specifications are currently available in draft form at www.projectliberty.org/resources/specifications.php#box3.
As with all technical specifications from Liberty Alliance, the public
is invited to review and comment on the specifications. Additional
information on the specifications is also available in application use
About Liberty ID-WSF
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