The data manipulation command in SEGDDWM

Group design is one component of CSCW. An existing data warehouse can analyze data in a single data warehouse and offer effective information for design. But it can't effectively support group design, so we established a model of a data warehouse that can support group design, called SEGDDWM. We also established a corresponding data manipulation command, and came up with an algorithm which was used to build an assembled dimension by which we can get high query efficiency and a better auxiliary enterprise policy-making level goes on group design.