Heterogeneous data source shielding by an integrated development environment (IDE), including receiving a product process release request or a product process test request initiated by a user, obtaining a configuration parameter of a product and a data flow model preconfigured for the product, where the data flow model includes a multi-input node that connects multiple input data sources, and a matching relationship between the input data sources and different configuration parameters is configured on the multi-input node looking up a corresponding input data source according to the configuration parameter of the product, replacing the multi-input node in the data flow model with the corresponding input data source, and using a data flow model obtained after replacing for the product process release or the product process test.