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Deriving semantic models from privacy policies
Breaux, T.D.; Anton, A.I.;
Policies for Distributed Systems and Networks, 2005. Sixth IEEE International Workshop on
6-8 June 2005
Page(s):67
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76
Abstract:
Natural language policies describe interactions between and across organizations, third-parties and individuals. However, current policy languages are limited in their ability to collectively describe interactions across these parties. Goals from requirements engineering are useful for distilling natural language policy statements into structured descriptions of these interactions; however, they are limited in that they are not easy to compare with one another despite sharing common semantic features. In this paper, we propose a process called semantic parameterization that in conjunction with goal analysis supports the derivation of semantic models from privacy policy documents. We present example semantic models that enable comparing policy statements and discuss corresponding limitations identified in existing policy languages. The semantic models are described by a context-free grammar (CFG) that has been validated within the context of the most frequently expressed goals in over 100 Website privacy policy documents. The CFG is supported by a qualitative and quantitative policy analysis tool.
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