You can create user interfaces and the data model for a Web application using the graphical and declarative development tools for Web Dynpro.
The Web Dynpro tools provide special modeling tools for defining a Web Dynpro model (see Web Dynpro Model Tools). With Web Services as a possible model type, Web Dynpro offers the possibility for connecting a Web Dynpro front end to an existing back end. The developer can point the model wizard to an arbitrary Web Service on the Internet and have the code for accessing this Web Service generated automatically.
For more information, see Importing a Web Service Model.
In the following tutorial you will find examples of how to combine Web Dynpro applications with Web Services:
Using the Car Rental Web Service with Web Dynpro
In this tutorial you will use a predefined Web service for hiring a car. You will become familiar with all the development steps required in a Web Dynpro application, starting from a project base that already exists, to connect to the business logic using a Web service-based model.