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[Review] Large-Scale Complex IT Systems

The complexity of the system's interactions caused a huge amount of loss in a short time, and people could not understand why. The current society depends on the complexity and complexity of complex IT systems, and we do not understand them well and do not have the SE techniques developed accordingly. Coalitions of Systems These systems are a collection of independently operated and managed systems. This can be called SoS. The so-called virtual SoS Maier mentioned is the coalition of systems here (the most free form without central management and common goals). The dynamic nature of this is a difficult point in software engineering. However, we must ensure that the system fails and that unintentional behavior does not harm individuals and society. System complexity There are many dynamic relationships, complex systems are nondeterministic, and can not predict the overall characteristics of a partial system. Complexity comes from dynamic relationships. And nonfunctional beha...