Analysis on aerospace software health metrics based on multi-factor reliability growth model
WeiqiXie1, YuanwenCai2, LongCheng2
COMPUTER MODELLING&NEW TECHNOLOGIES 2014 18(12B) 573-579
1Department of Graduate Management, Equipment Academy, Beijing, 101416,Beijing, China
2Department of Space Equipment, Equipment Academy, Beijing, 101416,Beijing, China
Software health management technology main includes the processes of real-time detection, fault diagnosis, health metrics and taking mitigation measurement, and health metrics is the important basis for taking mitigation measurement. An integrated software health metrics is put forward in this paper, and the software health is measured from the layer of task, function and resource. By constructing a multi-factor reliability growth model, the health of task is measured by reliability; the health of resource is measured by the usage of various resources; and the health of function is measured by the risk of failure models and their propagation distance. Finally, the integrated health metrics is builton the basis of the three areas, and the status of software health is divided by the number of health. Then, the status of software health provides theoretical basis for which mitigation measurement should be taken