A Practical Dependability Measure for Embedded Computer Systems

摘要: Dependability is commonly described by a number of attributes, such as reliability, availability, safety and security. Quantitative measures are found for each separate attribute e.g. reliability but not defined the totality all attributes. This paper suggests vectorized measure based on Markov processes.The covers modified version security attribute. It should be used practical dependability trade-offs especially applicable to autonomous systems with embedded computers, aerospace vehicles and control systems. Key issues concepts degradability, subservice service level. The expected operating time an operational service level total before failure failed service levels.