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61.
62.
Economic globalization leads to complex decentralized company structures calling for the extensive use of distributed IT-systems.
The business processes of a company have to reflect these changes of infrastructure. In particular, due to new electronic
applications and the inclusion of a higher number of—potentially unknown—persons, the business processes are more vulnerable
against malicious attacks than traditional processes. Thus, a business should undergo a security analysis. Here, the vulnerabilities
of the business process are recognized, the risks resulting from the vulnerabilities are calculated, and suitable safeguards
reducing the vulnerabilities are selected. Unfortunately, a security analysis tends to be complex and affords expensive security
expert support. In order to reduce the expense and to enable domain experts with in-depth insight in business processes but
with limited knowledge about security to develop secure business processes, we developed the framework MoSSBP facilitating the handling of business process security requirements from their specification to their realization. In particular,
MoSS
BP
provides graphical concepts to specify security requirements, repositories of various mechanisms enforcing the security requirements,
and a collection of reference models and case studies enabling the modification of the business processes. In this paper,
the MoSS
BP
-framework is presented. Additionally, we introduce a tool supporting the MoSSBP-related security analysis of business processes and the incorporation of safeguards. This tool is based on object-oriented
process models and acts with graph rewrite systems. Finally, we clarify the application of the MoSSBP-framework by means of a business process for tender-handling which is provided by anonymity-preserving safeguards.
Peter Herrmann studied computer science at the University of Karlsruhe, Germany (diploma in 1990). Afterwards, he worked as a Ph.D. student
(doctorate in 1997) and postdoctoral researcher in the Computer Networks and Distributed Systems Group of the Computer Science
Department at the University of Dortmund, Germany. Since 2005 he is a full professor for formal methods at the Department
for Telematics of the Norwegian University of Science and Technology (NTNU) in Trondheim, Norway. His research interests include
the formal-based development of networked systems and the engineering of distributed services. Moreover, he is interested
in security and trust aspects of component structured distributed software.
Gaby Herrmann studied computer science at the University of Karlsruhe, Germany (diploma in 1991). Afterwards, she worked as a researcher
in the Communication Group and the Information Systems Group at University of Duisburg-Essen (Doctorate in 2001, topic: security
of business processes). Since 2000 she works as executive secretary at the Department of Economics, Business Studies and Computer
Sciences at the same university. 相似文献
63.
We present measurements of the spatial response of infrared dipole and bow-tie lithographic antennas. Focused 10.6-mum radiation was scanned in two dimensions across the receiving area of each antenna. Deconvolution of the beam profile allowed the spatial response to be measured. The in-plane width of the antenna's spatial response extends approximately one dielectric wavelength beyond the metallic structure. Determination of an antenna's spatial response is important for several reasons. The power collected by the antenna can be calculated, if the collection area and the input irradiance (watts per square centimeter) are known. The actual power collected by the antenna is required for computation of responsivity and noise-equivalent power. In addition, the spatial response provides insight into the current-wave modes that propagate on an antenna and the nature of the fringe fields that exist in the adjacent dielectric. 相似文献
64.
CC Gregorio K Trombitás T Centner B Kolmerer G Stier K Kunke K Suzuki F Obermayr B Herrmann H Granzier H Sorimachi S Labeit 《Canadian Metallurgical Quarterly》1998,143(4):1013-1027
Titin is a giant elastic protein in vertebrate striated muscles with an unprecedented molecular mass of 3-4 megadaltons. Single molecules of titin extend from the Z-line to the M-line. Here, we define the molecular layout of titin within the Z-line; the most NH2-terminal 30 kD of titin is located at the periphery of the Z-line at the border of the adjacent sarcomere, whereas the subsequent 60 kD of titin spans the entire width of the Z-line. In vitro binding studies reveal that mammalian titins have at least four potential binding sites for alpha-actinin within their Z-line spanning region. Titin filaments may specify Z-line width and internal structure by varying the length of their NH2-terminal overlap and number of alpha-actinin binding sites that serve to cross-link the titin and thin filaments. Furthermore, we demonstrate that the NH2-terminal titin Ig repeats Z1 and Z2 in the periphery of the Z-line bind to a novel 19-kD protein, referred to as titin-cap. Using dominant-negative approaches in cardiac myocytes, both the titin Z1-Z2 domains and titin-cap are shown to be required for the structural integrity of sarcomeres, suggesting that their interaction is critical in titin filament-regulated sarcomeric assembly. 相似文献
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