Research progress on credibility assessment of a complex simulation system

Modeling and simulation have been used extensively, and they have become an important means to recognize and remold the real world. Whether the simulation system is credible has been a concern of simulation users. Various complexity characteristics of the simulation systems are presented with increasingly complex simulation objects and higher application requirements, creating some challenges in credibility assessment. First, the development process of the simulation credibility assessment is summarized. Next, the characteristics of complex simulation systems and the problems of the credibility assessment are analyzed, and some solutions and countermeasures for the assessment problems are provided. Finally, the challenges and opportunities of the credibility assessment for complex simulation systems are summarized, and the corresponding future research directions are indicated.