Colored spheres show approved card holders. In the original application, historical information on each card holder could be obtained by clicking on each of the spheres. The three axes show applicant information. The size of the sphere is the salary, and the color is the credit limit for that card holder. A white sphere is used to depict a new applicant. The applicant's credit limit can be determined by the 3D position of that sphere relative to the historical data base information.
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