Identifier switching device, computer readable medium, and identifier switching method

A non-transitory computer readable medium storing an identifier switching program that causes a computer to execute:

• a switching request process of outputting a switching request that requests switching to a new identification;
• and
• a determination process of referring to rule information in a rule information storage device which stores the rule information and history information in a history storage device which stores the history information, when the switching request is outputted, the rule information being information for determining the new identifier and in which a history condition that is a use history of the new identifier is defined as a condition for determining the new identifier, the history information having a plurality of history records in each of which an identifier and a use history of the identifier are associated;
• and determining, from among the plurality of history records, an identifier that agrees with the rule information, as the new identifier.

An identifier switching method of:

• outputting a switching request that requests switching to a new identification;
• and
• referring to rule information in a rule information storage device which stores the rule information and history information in a history storage device which stores the history information, when the switching request is outputted, the rule information being information for determining the new identifier and in which a history condition that is a use history of the new identifier is defined as a condition for determining the new identifier, the history information having a plurality of history records in each of which an identifier and a use history of the identifier are associated;
• and determining, from among the plurality of history records, an identifier that agrees with the rule information, as the new identifier.