Integrated Model-Based Safety Analysis

摘要

A method for integrated model-based safety analysis includes integrating a safety analysis model into a system development model of a safety-critical system. The system development model includes model components. The safety analysis model models a failure logic separately for each of the model components. The method includes representing dependencies among the model components with a design structure matrix. The design structure matrix represents each of the model components with a row and a column and shows dependencies between model components with corresponding entries. The method also includes sequencing the design structure matrix, and identifying at least one dependency loop and loop components in the sequenced design structure matrix. The loop components are part of the at least one dependency loop.

主权项

1. A method for integrated model-based safety analysis, the method comprising:
integrating a safety analysis model into a system development model of a safety-critical system, the system development model comprising model components, and the safety analysis model modeling a failure logic separately for each of the model components; representing dependencies among the model components with a design structure matrix, the design structure matrix representing each of the model components with a row and a column and showing dependencies between the model components with corresponding entries; sequencing the design structure matrix; and identifying at least one dependency loop and loop components in the sequenced design structure matrix, the loop components being part of the at least one dependency loop.