Cover"; "Contents"; "Preface"; "Authors"; "Chapter 1: Introduction"; "Chapter 2: Concepts Related to System Availability"; "Chapter 3: Approximate Solution and Its Problem for General Continuous Availability Model"; "Chapter 4: Instantaneous Availability Model of Discrete-Time System under General Probability Distribution"; "Chapter 5: Instantaneous Availability Model of System with Finite Time Restrained and Proof of Its Stability"; "Chapter 6: Analysis and Control Method for Volatility of System Instantaneous Availability" "Chapter 7: Comparative Analysis on Discrete-Time Instantaneous Availability Models under Exponential Distribution""Chapter 8: Analysis of Instantaneous Availability Fluctuation under Truncated Discrete Weibull Distribution"; "Chapter 9: Optimal Design of Instantaneous Availability Fluctuation under Truncated and Discrete Weibull Distribution"; "Chapter 10: Conclusions and Prospects"; "References"