SoapUI helps with easily creating and executing automated functions, regression, and loading tests. For a single test environment, SoapUI gives a complete test coverage while supporting all the technologies.
REST API offers a powerful and simple Web services API. It provides great ease of integration and development, and proves excellent choice for using with mobile apps.
XML allows data to be stored in separate XML files that allows developers to focus on HTML or CSS for display and layout. It stores the data in text format and thus simplifies data transport.