IEC 61078:2016本国际标准描述: -在可靠性分析中使用可靠性框图时适用的要求； -利用可靠性框图对系统可靠性建模的程序； -如何使用RBDs进行定性和定量分析； -使用RBD模型计算具有恒定(或时间相关)块成功/失败概率的不同类型系统以及未修复块或修复块的可用性、故障频率和可靠性度量的程序； -进行可用性、故障频率和可靠性测量计算的一些理论方面和局限性； -与故障树分析（参见IEC 61025）和马尔可夫技术（参见IEC 61165）的关系。这第三版取消并取代了2006年出版的第二版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: -重新考虑了文件的结构，修改了标题，扩充和改进了内容，以提供更多关于可用性、可靠性和故障频率计算的信息； -条款3已经扩展，并且已经引入条款来描述电类比、“非相干”RBD和“动态”RBD； -扩展了关于布尔代数方法的附录B； -介绍了附件C（时间相关概率的计算）、附件D（重要性因子）、附件E（RBD驱动的Petri网模型）和附件F（数值示例和曲线）。 关键词:可靠性框图（RBD）；

IEC 61078:2016 this International Standard describes:
- the requirements to apply when reliability block diagrams (RBDs) are used in dependability analysis;
- the procedures for modelling the dependability of a system with reliability block diagrams;
- how to use RBDs for qualitative and quantitative analysis;
- the procedures for using the RBD model to calculate availability, failure frequency and reliability measures for different types of systems with constant (or time dependent) probabilities of blocks success/failure, and for non-repaired blocks or repaired blocks;
- some theoretical aspects and limitations in performing calculations for availability, failure frequency and reliability measures;
- the relationships with fault tree analysis (see IEC 61025) and Markov techniques (see IEC 61165). This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- the structure of the document has been entirely reconsidered, the title modified and the content extended and improved to provide more information about availability, reliability and failure frequency calculations;
- Clause 3 has been extended and clauses have been introduced to describe the electrical analogy, the "non-coherent" RBDs and the "dynamic" RBDs;
- Annex B about Boolean algebra methods has been extended;
- Annex C (Calculations of time dependent probabilities), Annex D (Importance factors), Annex E (RBD driven Petri net models) and Annex F (Numerical examples and curves) have been introduced. Keywords: reliability block diagram (RBD)