VERFAHREN, COMPUTERSYSTEM UND SOFTWAREANWENDUNG ZUR BEREITSTELLUNG EINES ZENTRALEN SPERRDIENSTES

The invention refers to a method for logically locking data objects. The method comprises: - receiving from one of a plurality of data processing modules a request to logically lock one or more data objects of a data base for access of other data processing modules; - querying an internal buffer, in which information on logically locked data objects are stored, whether said data objects are already logically locked; - storing information on such of said data objects, which are not yet logically locked in the internal buffer; - processing the not logically locked and, when updating the data objects, locking the data object in the data base by means of the data base management system; - receiving names of one or more key fields of the one or more data objects to be locked; - receiving n values for each of the m key fields of n data objects to be locked; - receiving a maximum number of logical locks for the n data objects; - checking whether n