Questionnaire collection method, questionnaire collection device and computer program

摘要

PROBLEM TO BE SOLVED: To provide a questionnaire collection method, a questionnaire collection device and a computer program. SOLUTION: The answer information of a questionnaire including a question about an evaluation target is acquired by using a computer capable of accessing a distributed ledger network composed of a plurality of nodes, and the acquired answer information is transmitted to a plurality of nodes. Send to the distributed ledger network for distributed storage. [Selection diagram] Fig. 5