In Visual Studio, models and packages are represented in the Application Explorer. You can switch to the model view by right-clicking on the main AOT ode and selecting Model view. The following screenshot shows the model view of the Application Explorer. As we can see, all the models are represented as tree structures in the model view. Package names are displayed in the parenthesis for each model:

As highlighted in the preceding screenshot, Application Suite Tax Books Integration, and Application Suite Tax Engine Integration are two model parts of the ApplicationSuite package.