When an energy company was launching a new business, they planned to establish a JV with a company possessing maintenance capabilities. The intention was to use the partner’s maintenance system for the JV. However, there were numerous concerns, such as security vulnerabilities and whether the architecture would ensure connectivity with their own system. We therefore conducted due diligence on the partner's system, including its code and settings. This contributed to the decision to proceed based on the premise of utilizing the maintenance system.