1. A method, comprising: generating, using at least one processor, a web services mapping from a common mapping descriptor associated with a web services interface; receiving an update to mapping information including an update to web services interface mapping information stored in a first mapping model and an update to schema-to-Java mapping information stored in a second mapping model; and generating, based on the web services mapping and the update to the mapping information, a customized interface comprising a common interface for web services to be employed in a server and for a web services client to be employed in a client, the common interface to provide direct mapping between the first mapping model, the second mapping model, and the common mapping descriptor, wherein the customized interface is a service endpoint interface to specify methods of a Java class that are to be exposed as web services operations.