This is simple case to retrieve data from an application. When we want an object (or a list of object), only one request is done. Web Service Request defined what methods must be called and how to interpret its result. Web Service Connector will do the connection to the application, emits the request, get the result and return it to the Web Service Request. The result is then parse, and a brain object is created. The brain object simulates an erp5 object and defined the asXML method which generates the XML used for the synchronization. The XML format returned by the asXML is based on the TioSafe XML Specification. Note that the brain might need to do some requests to the application on order to complete the XML. (For example to retrieve all addresses of one person)