The purposes of this study are to make the case on the cognitive side obvious, and consider the curriculum design. As a case on the cognitive side, I concretely grasped the content that should be mastered to accomplish at data processing -the knowledge that should be needed to accomplish the algorithm and the date processing algorithm for date base knowledge of schema construction. As date processing algorithm, there are to divide the date to understand the information correctly, to grasp the relationship, to search the context of the information, to consider it from the diverified point or the manifold point, to compare with each other, to monitor its own process and so on. Moreover, as knowledge to accomplish the algorithm, there are one to divide the information, one about the relationship among divided information and logical movement, and one to monitor its own process. The four grades are considered as a curriculum design as follows : The basic training stage, The learnig stage, The construction stage, The massive stage