An Improved Functional Dependency Network Model for SoS Operability Analysis

Abstract

There are often complex dependency relationships between systems in a system of systems (SoS), which present great challenges for SoS operability analysis. Functional Dependency Network Analysis offers the capability to evaluate the effect of both topology and of the possible degraded functioning of one or more systems on the operability of each node in the SoS. But there are some insufficiencies in the method, so here we give exact definition to self-effectiveness, which includes absolute self-effectiveness and relative self-effectiveness. Then according to the new definitions we show the detail calculation equations. Finally we we take the application of Guariniello and DeLaurentis’s five-node aerospace network for example, and compare the results with theirs. Comparative results show that their results are larger than the exact outcome, and our version give the authentic outcomes.

Analyzing Ballistic Missile Defense System Effectiveness Based on Functional Dependency Network Analysis

“…Drabble [11] applied the dependency network analysis to identify the key dependent nodes and conduits within the information propagation network for emergency response. Wang [12] and Zhang [13] analyzed the SoS security of Global Navigation Satellite Systems (GNSS) based on FDNA technique. Accordingly [9,10], in the FDN, the nodes represent systems or capabilities, while the links represent the operational dependencies between the systems or between the capabilities.…”

Maintenance Support System Constitution Analysis Based on FNDA

“…Functional dependency network analysis is a way to model and measure the dependencies between the various elements within the system [1]. In recent years, FDNA technology has been applied to the maintenance and architecture analysis of aeronautical systems [2], to solve the problem of information transfer in collaborative satellite networks [3], technology development of R & D process modeling [4] and security analysis of satellite navigation systems [5,6] and other areas. This approach will provide new ideas for the study of maintenance support system constitution and maintenance concepts.…”