Accession Number:

ADA459679

Title:

Hierarchical Role-based Viewing for Multi-level Information Security in Collaborative CAD

Descriptive Note:

Technical rept.

Corporate Author:

DREXEL UNIV PHILADELPHIA PA DEPT OF COMPUTER SCIENCE

Report Date:

2004-01-01

Pagination or Media Count:

21.0

Abstract:

Information security and assurance are new frontiers for collaborative design. In this context, information assurance IA refers to methodologies to protect engineering information by ensuring its availability, confidentiality, integrity, non-repudiation, authentication, and access control. In collaborative design, IA techniques are needed to protect intellectual property, establish security privileges, and create need to know protections on critical features. This paper provides a framework for information assurance within collaborative design based on a technique the authors call Role-based Viewing. They extend upon prior work to present Hierarchical Role-based Viewing as a more flexible and practical approach since role hierarchies naturally reflect an organizations line of authority and responsibility. They establish a direct correspondence between multi-level security and multiresolution surfaces where a hierarchy is represented as a weighted directed acyclic graph. The permission discovery process is formalized as a graph reachability problem and the path cost is used as input to a multiresolution function. By incorporating security with collaborative design, the costs and risks incurred by multi-organizational collaboration can be reduced. The authors believe that this work is the first of its kind to unite multi-level security and information clouding with geometric data, including multiresolution surfaces, in the fields of computer-aided design and collaborative engineering.

Subject Categories:

  • Information Science
  • Computer Programming and Software
  • Computer Systems Management and Standards
  • Manufacturing and Industrial Engineering and Control of Production Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE