本书总结了这六年来空间故障树理论发展的核心成果。将这些内容形成体系，并首次以英文专著形式出版。空间故障树理论是一套完整的，独立的系统可靠性分析框架；具有良好的适应性、扩展性和通用性，是自成体系的方法论。本书以理论建立和推导为主，并辅以算例分析。按照理论发展过程编排结构。给出了空间故障树的基本概念、思想、方法、结论等，并有机地贯串在一起，形成层次合理的理论体系，既内容丰富，又显得条理清楚。为体现方法本身特点和分析过程，使用了较为简单的例子。以使读者了解思想，不纠结于复杂的过程，进而突出方法本身。同时本书面向安全领域和系统可靠性研究人员，因此我们更注重于可靠性研究的思想传递，以便开阔研究思路。

Content Summary
Introduction
Chapter 1 Introduction
1.1 Purpose and Significance
1.2 Summary of Research and Problems
1.2.1 Fault Tree Research
1.2.2 Multi-Factor Influence and Fault Big Data
1.2.3 System Function Structure Analysis and Factor Space
1.2.4 System Reliability and Influencing Factors
1.2.5 loud Model and Similarity
1.2.6 Object Calassification and Similarity
1.3 Deficiency of System Reliability
1.4 Main Research Content
References
Chapter 2 Continuous Space Fault Tree
2.1 Concepts of CSFT
2.2 Fault Probability Distribution
2.2.1 Component Fault Probability Distribution
2.2.2 System Fault Probability Distribution
2.3 Importance Distributions
2.3.1 Probability Importance Distribution
2.3.2 Criticality Importance Distribution
2.4 System Fault Probability Distribution Trend
2.5 Calculation of MTLα
2.6 Conclusions
References
Chapter 3 Discrete Space Fault Tree
3.1 Discrete Space Fault Tree
3.2 Significance of DSFT Modifed Using Fuzzy Structured Element
3.3 Factor Projection Fitting Metho
3.4 Constructions and Applications of EDSFT
3.4.1 E-Characteristic Function
3.4.2 E-Component Fault Probability Distribution
3.4.3 E-System Fault Probability Distribution
3.4.4 E-Probability Importance Distribution
3.4.5 E-Criticality Importance Distribution
3.4.6 E-System Fault Probability Distribution Trend
3.4.7 E-Component Domain Importance
3.4.8 E-Factor Importance Distribution
3.4.9 EFactor Joint Importance Distribution
3.5 Conclusions
References
Chapter 4 Inward Analysis of System Factor Structure
4.1 Inward Analysis of System Factor Structure
4.2 Human-Machine Cognition
4.3 Table Method
4.4 Classification Reasoning Method
4.5 Mathematical Description of Cassification Reasoning Method
4.6 Item-By-Item Analyses
4.7 Mathematical Description of Item- By-Item Analyses
4.8 Conclusions
References
Chapter 5 Function Structure Analysis and Factor Space
5.1 Factor Analysis Method of Function Structue
5.1.1 Factors and Dimension Variabitity
5.1.2 Function Structure Analysis Space
5.2 Factor Logic Description of Function Structure
5.2.1 Axiom System of Function Structure Analyis
5.2.2 Minimization Method of System Function Structure
5.3 Analysis of System Function Structure
5.3.1 Analysis with Incomplete Information
5.3.2 Analysis with Complete Information
Reference
Chapter 6 System Reliability with Influencing Factors
6.1 Methodology of Concepts and Definition
6.2 Analysis of Relationship between Reliability and Infuencing Factors
6.2.1 Random Variable Decomposition Fomula
6.2.2 Causal Relationship Reasoning
6.2.3 Causal Concept Extraction
6.2.4 Background Relationship Analysis
6.2.5 Factor Dimension Reduction
6.2.6 Compression of Fault Probability Distribution
6.3 Algorithm Applation
6.3.1 Random Variable Decomposition Formula
6.3.2 Causal Relationship Reasoning
6.3.3 Causal Concept Extraction
6.3.4 Background Relationship Analysi
6.3.5 Factor Dimension Reduction
6.3.6 Cormpression of Fault Probability Distribution
6.4 Conclusions
References
Chapter 7 Cloudiation Space Fault Tee
7.1 Definitions of SFT
7.2 Construction of Cloudization Space Fault Tree
7.2.1 Basis of CLSFT
7.2.2 Cloudization Fauit Pobability Distribution
7.2.3 Cloudization Fauit Pobability Distribution Trend
7.2.4 Cloudization Importance Distribution Probability and Criticality
7.2.5 Cloudization Factor Importance and Joint Importance Distribution
7.2.6 Cloudization Component Domain Importance
7.2.7 Cloudization Path Set Domain and Cut Set Domain
7.2.8 Uncertainty Analysis of Rlibility Data
7.3 Example Analysis
7.3.1 Cloudization Fault P