We propose an extension to the P3P framework that enables a consumer and a web service to engage in active policy negotiation. In addition, we discuss enforcement strategies for negotiated consumer preferences.

Systematic development of security sensitive software requires that there be a sufficiently expressive linguistic extension to modeling languages. We propose an extension to the Unified Modeling Language (UML) to satisfy this need. Our extensions are to the UML metamodel with a security policy constraint specification and enforcement module, business tasks and a history log for method calls. Us...

this study aimed to identify barriers of hydrothermal fish business in golestan province. study was a descriptive survey. t he statistical population of the study consisted of all 147 aquaculture hydrothermal fish growers and all of them were selected using census method. information was gathered through a questionnaire which its face validity was confirmed by experts of agricultural extension ...

Eng, M.A. and E.H. Hamilton. 2000. From here to eternity: the perils of policy analysis. In Proceedings, From science to management and back: a science forum for southern interior ecosystems of British Columbia. C. Hollstedt, K. Sutherland, and T. Innes (editors). Southern Interior Forest Extension and Research Partnership, Kamloops, B.C., pp. 55–8. From here to eternity: The perils of policy a...

Policy-based dynamic negotiations allow more flexible authorization in complex Grid environments, and relieve both users and administrators from up front negotiations and registrations. This paper describes how such negotiations overcome current Grid authorization limitations, and how policy-based negotiation mechanisms can be easily integrated into a Grid infrastructure. Such an extension prov...

We specify and formally verify security properties of an extension of a UNIX file system. Extensions include a multi-level security model, ACLs, separate MAC and DAC administration, and others. The security properties we verified are: simple security and confinement as defined in the Bell and LaPadula security model [3, 4], the standard DAC policy for ACLs, and a security policy for the adminis...

This is a discussion of the paper "Simple versus Optimal Rules as Guides to Policy" by Brock, Durlauf, Nason and Rondina (BDNR) presented in November 2006 at Carnegie-Mellon University under the auspices of the Carnegie-Rochester Conference Series on Public Policy. I review the authors’arguments, present a few suggestions for extension and outline where I think at least one strand of the litera...

The Mach external pager interface allows applications to supply their own routines for moving pages to and from second-level store. Mach doesn’t allow applications to choose their own page replacement policy, however. Some applications have access patterns that may make least recently used page replacement inappropriate. In this paper, we describe an extension to the external pager interface th...