Reliability Modeling for Real-Time Multi-Task Software Based on Lansaction

Taking lansaction as component in real-time multi-task system, and executeing time rate as the quotiety of lansaction, the paper present a method of reliability modeling based on lansaction for real-time multi-task software. The method tally with the actual situation of programm executing of real-time multi-task. The model can submit evaluation results of single lansaction, so, the reliability modeling is convenient for reliability assigning and determine test time according to importance of the lansaction.