A method and system for searching at least one data source using a query is described. In a first step one or more query templates are generated in which each query template can be used to define at least a part of the query. Several of the query templates are joined logically to create a query representation and input variables are selected or inputted into data entry fields. Subsequently, those data elements which will be returned by the query are selected and finally a query generated which is sent to at least one data source.