Center, management method, and non-transitory storage medium

A management method executed by a computer including a processor and that is configured to communicate, via a network, with an over-the-air (OTA) master configured to control software updating of a plurality of electronic control units (ECUs) installed in a vehicle, the management method comprising:

• performing a propriety determination determining whether a version of software implemented in each of the ECUs is an implementation management version that is a version of software to be implemented;
• using identification information and compatible configuration information to determine whether a newest combination of software versions indicated by the identification information is appropriate, the identification information indicating the version of software implemented in each of the ECUs, and the compatible configuration information defining an appropriate combination of versions of software implemented in each of the ECUs;
• and
• transmitting an instruction to the vehicle to roll back the software of at least one of the ECUs when the processor determines that the version of the software of the at least one of the ECUs is not the implementation management version and determines that the newest combination is not appropriate, wherein
• the instruction to roll back the software of the at least one of the ECUs is not transmitted to the vehicle when the processor determines that the version of the software of the at least one of the ECUs is not the implementation management version and determines that the newest combination is appropriate.

A non-transitory storage medium storing a management program that is executable by a computer including a processor and that is communicable, via a network, with an over-the-air (OTA) master that controls software updating of a plurality of electronic control units (ECUs) installed in a vehicle, and that causes the computer to perform functions comprising:

• performing a propriety determination determining whether a version of software implemented in each of the ECUs is an implementation management version that is a version of software to be implemented;
• using identification information and compatible configuration information to determine whether a newest combination of software versions indicated by the identification information is appropriate, the identification information indicating the version of software implemented in each of the ECUs, and the compatible configuration information defining an appropriate combination of versions of software implemented in each of the ECUs;
• and
• transmitting an instruction to the vehicle to roll back the software of at least one of the ECUs when the processor determines that the version of the software of the at least one of the ECUs is not the implementation management version and determines that the newest combination is not appropriate, wherein
• the instruction to roll back the software of the at least one of the ECUs is not transmitted to the vehicle when the processor determines that the version of the software of the at least one of the ECUs is not the implementation management version and determines that the newest combination is appropriate.