
32 Analyzing and Securing Social Networks
copyright issues, data quality, data provenance, and governance. Many interesting papers have
appeared in recent conferences on administration policies. Figure 3.6 illustrates various adminis-
tration policies.
3.2.3 identificAtion And AuthenticAtion
For the sake of completeness, we discuss identication and authentication as part of our discussion
on discretionary security. By identication, we mean users must identify themselves with their user
ID and password. Authentication means the system must then match the user ID with the password
to ensure that this is indeed the person he is purporting to be. ...