| Sammanfattning: |
Almost infinite resource space in the Web provides massive
information for various purposes. Problems arise: How to
effectively obtain the Web information that we need, and how to
block the inappropriate Web materials. PICS provides a standard
for possible support to the Internet users to control access to the
Web. To a broader sense, METADATA is introduced to the
Web information structure and gives a more powerful
management in modelling the information. In this report, we
study the current situations of PICS development, survey the
existing work, and focus on the access control of the Internet
information and metadata related issues. We consider our future
effort will be put in the metadata analysis and formulation. |
