What is information integration service?

I am engaged in manufacturing informatization. Let me give you an example. You can infer for yourself according to your industry. For example, some enterprises went to PDM system, and later went to OA and OA, CAPP system. Information integration means that they can access each other's data through data interfaces. When I was on OA, I suddenly wanted to look at the financial statements or the product flow in PDM. It can be embodied in OA, and related programs can also be accessed through OA. I logged into PDM and recorded some CAPP process files after integration. And can be modified. In short, the purpose of integration is to enjoy information.