Abstract
Dynamic capability is strategic management in constant technology changing market. However, Dynamic capability is for management process to correspond to only change, so it does not have an intension of firm's continuation or growth. Also there is no constant technology change in any industry, Necessity of Dynamic capability is limited. For firm's continuation or growth, operational capability for supporting daily work is also needed. Accordingly, firms have to use capabilities properly to correspond to market condition for their continuation or growth. This research took GREE,Inc. at internet service industry as case to examine their success factor from relation between market change and dynamic and operational capability.