1e41f4b71Sopenharmony_ci# Differences in Configuration Files 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ciThe FA model uses the [config.json file](../quick-start/application-configuration-file-overview-fa.md) to describe the basic information about an application. An application can have multiple modules, and each module has a **config.json** file. The **config.json** file consists of three parts: **app**, **deviceConfig**, and **module**. The **app** tag is used to configure application-level attributes. If an application has multiple modules, the **app** configuration in each **config.json** file must be consistent. 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ci 7e41f4b71Sopenharmony_ciThe stage model uses the [app.json5](../quick-start/app-configuration-file.md) and [module.json](../quick-start/module-configuration-file.md) files to describe the basic information about an application. An application can have multiple modules but only one **app.json5** file. This file is used to configure application-level attributes and the configuration applies to all the modules. Each module has a **module.json5** file, which is used to configure module-level attributes and the configuration applies only for the current module. 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ci**Figure 1** Configuration file differences 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ci 12
