Composite Capabilities Preferences Profiles CCPP

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Composite Capabilities/ Preferences Profiles
(CC/PP)

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Introduction

• CC/PP stands for Composite Capabilities/Preference
  s Profile, and is a system for expressing device
  capabilities and user preferences.
• The goal of the CC/PP framework is to specify how
  client devices express their capabilities and
  preferences (the user agent profile) to the
  server that originates content (the origin
  server). The origin server uses the "user agent
  profile" to produce and deliver content
  appropriate to the client device. In addition to
  computer-based client devices, particular
  attention is being paid to other kinds of devices
  such as mobile phones.

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Devices

• The web is accessed by various devices
• PC, NoteBook, PDA, Mobile Phone
• Each one having different capabilities
• Hardwarescreen size/color, audio, bandwidth
• Softwarempeg, mp3, 3GPP, AMR

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CC/PP RDF

• The CC/PP framework starts with RDF and then
  overlays a CC/PP-defined set of semantics that
  describe profiles.
• CC/PP, RDF based profiler, is a collection of
  information of capabilities of hardware platform
  and system software, and preferences of the user.

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Advantages of CC/PP

• By only sending required content, no time or
  bandwidth is wasted sending unwanted content.
  This can also lead to faster page loading times.
• A server can provide information to a more
  diverse range on browsers. This can not only be
  beneficial in economic terms, but also in terms
  of site accessibility.
• You give the users what they want, not what you
  think they want.
• So many

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Deployment(Client Server Proxies)
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Deployment (Server Proxy only)
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Deployment (Client Proxy only)
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Deployment (Ideal Approach)
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CC/PP Query
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Content adaptation
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Two ways to use CC/PP profiles

• Selection
• If the web server has a set of pre-written web
  pages, suitable for a number of different
  devices, then the profile can be used to decide
  which of these pre-written pages is most suitable
  for the web browser.
• Transformation
• Web page content can be kept in a neutral format
  (e.g. XML). This can then be transformed into an
  appropriate format, using the profile to decide
  what that format is.

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CC/PP Implementations

• DICE
• Hewlett Packard
• DELI
• Intel
• Inria
• Keio University - Portal
• UMBC
• JIGSAW
• X-Smiles Browser
• So many

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Demonstrations

• An example of RDF file and graph
• A Demo Page presenting the functionality of the
  CC/PP protocol

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Preferance

• http//www.w3c.org
• http//www.w3.org
• http//www.webstandards.org
• http//www.ccpp.org/
• http//dice.ccpp.info/
• http//www.tml.hut.fi/Opinnot/Tik-111.590/2000/Pap
  ers/Rdf.html
• http//castrato.ics.forth.gr/qh/
• http//www.csse.monash.edu.au/projects/MobileCompo
  nents/projects/pda_doc_layout/seminar-html/

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Thank you !!

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