Service proposal support system and service proposal support method

A service proposal support method to be executed by a computer system,

• the computer system comprising:
• an arithmetic device;
• and
• a storage device,
• the storage device holding:
• solution information indicating system elements required for a solution that is proposable in order for a proposer to provide a service to a customer;
• and
• system configuration information indicating current system elements of the customer,
• the service proposal support method comprising:
• a first step of calculating, by the arithmetic device, for each of the solutions that are proposable by the proposer, a matching degree between system elements required for the each of the solutions and the current system elements of the customer;
• a second step of outputting, by the arithmetic device, based on the matching degree, one or more candidates for the solution to be proposed to the customer;
• and
• a third step of outputting, by the arithmetic device, for at least any one of the one or more candidates for the solution, when a lacking system element exists in the current system elements of the customer compared to system elements required for the at least any one of the one or more candidates for the solution, information indicating the lacking system element.