1. A method of deriving web service interfaces from form and table metadata comprising: receiving from a service client at a discovery subsystem a first request for services that are available on an application server; responding to the first request with a web service entry corresponding to a form registered in a database table as a service, wherein the form defines a user interface of an application, an external view of an entity, which fields are visible in the external view of the entity, whether the external view of the entity allows one of a read, a modify, an insert and a delete function to be operated on the entity, and whether particular fields in the external view of the entity are one of read-only or editable; receiving from the service client a second request for a description of the service; retrieving form metadata regarding the form on the application server; determining from the form metadata what fields from what tables are shown on the form; retrieving table metadata regarding properties of the fields, wherein each of the fields shown on the form appears as a field in the XML type using a name and type of the field from the table metadata; and using the form metadata and the table metadata to respond to the second request with a description of the service in the Web Services Definition Language (WSDL) format.