| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to perform research in a short time without reduction in reliability at low cost by the certainty of the attributes of members (sex, residential area and age) by making use of a credit-card membership organization and information terminals which the members have. SOLUTION: A host computer is provided with a function that transmits an e-mail, in which the URL of a research site appears to the information terminals the organized members have, and takes in and totals up in real time the data inputted by the members who open the e-mail and have access to the URL. The return of points can easily be made by converting the membership organization to the credit-card membership, and the research is realized in a short time at low cost without reduction in reliability by the certainty of the attributes of the members (sex, residential area and age). |
