What is the function of WSDL?

WSDL, which stands for Web Services Description Language, serves a specific purpose in the context of web services. Its primary function is to describe the interface aspects of a web service, detailing how it can be accessed and what functions it offers. This includes the protocols it uses, the endpoints, and the messages that need to be passed to and from the service.

When considering the context of the correct choice, it is evident that WSDL defines the way messages are formatted, the methods to be invoked, and the parameters required for those method calls. This allows clients to understand how to communicate with the service provider effectively and interpret the results once a request is made. Therefore, it accurately supports the function of passing messages to the provider and interpreting the results, making it essential for the interoperability of different web services.

The other options do not align with the primary purpose of WSDL. For instance, rendering graphics is not part of WSDL’s functionality, nor does WSDL play a role in securing web transactions or storing data. Instead, it focuses solely on the communication aspects between clients and web services.