Computer-implemented systems and methods for data harmonization in engineering simulation. The method may comprise receiving application preferences defining attributes associated with input data to be delivered to one or more applications from one or more data sources. A first set of attributes may be associated with data to be delivered to a first application. Application preferences may be provided to a handler in communication with the data sources. Raw data received by the handler may arrive in a variety of formats and packet sizes from the one or more data sources. Raw data may be packaged by the handler into one or more data packets having a size or format that satisfies the application preferences. One or more attributes associated with input data to be delivered to the first application may be defined. Packaged data may be transmitted over one or more data transmission channels satisfying the application preferences.