We have developed a "support system to check engine room machinery" (hereinafter, it is called "support system") that can conduct easy and reliable checks on the engine room, the results of which can be utilized effectively for inspection and maintenance. As the support system is applied not only to other onboard operations that should be carried out in accordance with operation procedure manuals, but also to on-site operations in other fields, we introduced additional functions to the support system. Moreover, we investigated and developed a function necessary to assist newcomers who learn practical lessons on-site.