DESIGN SUPPORT DEVICE, DESIGN SUPPORT SYSTEM, DESIGN SUPPORT METHOD, PROGRAM, AND STORAGE MEDIUM

According to one embodiment, a design support device (10) refers to a database. The database stores a graph structure (101). The graph structure includes a specification item (130), a unit item (140), a first item (110), and a second item (120). The unit item is of a unit included in a product. The unit item is associated with the specification item. The first item is tied to a system simulation model and associated with the unit item. The second item is tied to a three-dimensional model and associated with the unit item and the first item. The design support device transmits a first notification to a first processing device (31) when the three-dimensional model is updated. The first processing device is tied to the first item. The design support device transmits a second notification to a second processing device (32) when the system simulation model is updated. The second processing device is tied to the second item.