This paper discusses important shortcomings of current approaches to systems security engineering. The value and limitations of perimeter security designs are examined. An architectural approach to systems security engineering is introduced as a complementary means for strengthening current approaches. Accordingly, this paper outlines a methodology to identify classes of new reusable system security solutions and an architectural framework based on reuse of the patterns of solutions. It also introduces a new methodology for security metrics intended to stimulate critical solution design tradeoff analyses as part of security design reuse considerations. Examples of problems, potential architectural solutions, and corresponding security metrics are provided.
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Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.
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