The invention belongs to the technical field of ship
electronic information system fault propagation analysis, and provides a ship
electronic information system fault propagation analysis method based on a public computing environment. Comprising the steps of hardware equipment and
software resource identification, function classification and attribute evaluation, hardware resource connection diagram construction, dependency extraction,
physical network topology, function
logic network construction,
association mapping and integration, dependent
network construction, node normal threshold setting, failure node determination and load transfer formula setting. And determining a
fault propagation mechanism and carrying out k-step iterative propagation. According to the method, the relationship and dependence between each
functional module and hardware resources are more intuitive by constructing the
system topology model, and an analysis basis is provided for subsequent fault propagation analysis; fault propagation analysis is performed on a physical domain and an
information domain, and interaction between the physical domain and the
information domain is considered, so that analysis of a fault propagation path is more comprehensive; and the fault propagation calculation process is simplified through a k-
step method.