The modeling and Evolvement Analysis Method of operation system of systems based on extension space

Extension theory is the framework for modeling and problem-solving of complex decision problems. Based on extension modeling theory, the paper studies the modeling and evolvement analysis method of operation system of systems (OSoS). First, the conception of extension space is introduced based on extension theory, and the formalization definition of extension space is given. And then, based on FINC conception model of OSoS, the paper presents the Extension Modeling Method of OSoS (EMM-OSoS), and formalizes the matter elements (ME), the relation elements (RE), the action elements (AE) of EMM-OSoS. And at last, after defining seven operators based on extension space, the paper gives the Evolvement Analysis Method (EAM-OSoS). The contribution of paper to modeling and analysis of network-centric OSoS is referenced.