Information Model vs. Device Model
As described above, the terms Information Model and Device Model refer to different concepts. The Information Model refers to a model of the information structure upon which the messages and datatypes in OCPP are based, whereas the Device Model refers to a generalized mechanism within OCPP to enable any model of Charging Station to report how it is build up so, it can be managed from any CSMS without defining the structure of the Charging Station in advance. The messages that are used for Device Management are therefore part of the Information Model and the objects that are used for modelling a device ('Component' and 'Variable') are also part of the Information Model.