Abstract: Diversified definition modes of equipment system of systems concept exist some uncertainties that the semantic meanings and the extension objects can not be separated and that the system boundaries are blurred. These have been key issues to the concepts confusion of equipment system of systems and the modeling methods applying big data. Concept is the basic means of human cognitions. Granular computing with concepts as elements is an important way to construct a cognitive system model. Appling big data would push the transformation from the general ontology methodologies for cognitive to human centered cognitive computing system based on the formal concept analysis framework. Firstly, the big data phenomenon and the potential application modes associated with the equipment system of systems is descripted, then the granularity semantic features on system of systems and the strategy of using formal concept analysis to constructing concept cognitive system based on the granular computing thoughts are analyzed. The requirements for uncertainty forming mechanisms oriented dynamic evolution of equipment system of systems are discussed. At last, the basic architecture powered by dynamic data for cognitive computing system model oriented dynamic evolution researching of equipment system of systems is well argued.