Method for integrating data from assets of a technical installation into a platform, characterised in that - general models (AM, CM) are defined for the assets of a domain-specific technical installation by means of ontologies, wherein the general models comprise at least one model which describes the structure and the behaviour of the assets and one model which characterises the connections of the asset in the overall system, and general data sources containing information in connection with the assets are identified, and the data from the identified general data sources is mapped to the previously defined general models (AM, CM), - an asset is then selected for a specific installation and the corresponding general model (AM, CM) is imported into the platform, - an exchanging of static and dynamic data from any data sources (PDS-stat, PDS-dyn) from the specific installation takes place via further interfaces (DSM, DSC), - data sources (PDS-stat, PDS-dyn) from the specific installation are configured in such a manner that the general model (AM, CM) is filled with the specific data from this installation iteratively and at runtime for the selected asset on the basis of the data sources of the specific installation, - asset instances and connection instances for the selected asset are formed by filling the general model (AM, CM) with the specific data and are stored in the platform, - the instances (AI, CI) for the selected asset in the platform are configured by means of a component (INST) in such a manner that applications (Appl,..., AppN) can access the instances (AI, CI) for the selected asset and the data thereof via an access layer and via programming interfaces (S, API). - general models (AM, CM) are defined for the assets of a domain-specific technical installation by means of ontologies, wherein the general models comprise at least one model which describes the structure and the behaviour of the assets and one model which characterises the connections of the asset in the overall system, and general data sources containing information in connection with the assets are identified, and the data from the identified general data sources is mapped to the previously defined general models (AM, CM), - an asset is then selected for a specific installation and the corresponding general model (AM, CM) is imported into the platform, - an exchanging of static and dynamic data from any data sources (PDS-stat, PDS-dyn) from the specific installation takes place via further interfaces (DSM, DSC), - data sources (PDS-stat, PDS-dyn) from the specific installation are configured in such a manner that the general model (AM, CM) is filled with the specific data from this installation iteratively and at runtime for the selected asset on the basis of the data sources of the specific installation, - asset instances and connection instances for the selected asset are formed by filling the general model (AM, CM) with the specific data and are stored in the platform, - the instances (AI, CI) for the selected asset in the platform are configured by means of a component (INST) in such a manner that applications (Appl,..., AppN) can access the instances (AI, CI) for the selected asset and the data thereof via an access layer and via programming interfaces (S, API).