A system for processing value documents, in particular bank notes, wherein the system comprises: at least one bank-note processing machine (20a, 20b) having a central control device on which there are implemented software modules which are necessary for the standard operation of the bank-note processing machine (20a, 20b); and an application server which is connected to the bank-note processing machine (20a, 20b) via a communication network and on which there is implemented at least one further software module with optional applications which is executed on the application server and provides to the bank-note processing machine (20a, 20b) an application which provides at least one function going beyond the standard operation of the bank-note processing machine, wherein the bank-note processing machine (20a, 20b) comprises at least one checking device which captures raw data and/or measuring data of the bank notes processed with the bank-note processing machine (20a, 20b), wherein the software module implemented on the application server provides an application which is arranged for processing the raw data and/or measuring data captured by the checking device of the bank-note processing machine (20a, 20b), characterized in that the raw data and/or measuring data provided by the checking device of the bank-note processing machine (20a, 20b) comprise serial-number data of the bank notes processed by the bank-note processing machine (20a, 20b), wherein the application server is arranged, due to a serial-number application executed thereon, for storing in a serial-number archive the serial-number data provided by a bank-note processing machine (20a, 20b), and supervising the flow of bank notes between the bank-note processing machines (20a, 20b) that are in communication with the application server, using the serial-number data provided by a bank-note processing machine (20a, 20b) as well as using the serial-number archive. at least one bank-note processing machine (20a, 20b) having a central control device on which there are implemented software modules which are necessary for the standard operation of the bank-note processing machine (20a, 20b); and an application server which is connected to the bank-note processing machine (20a, 20b) via a communication network and on which there is implemented at least one further software module with optional applications which is executed on the application server and provides to the bank-note processing machine (20a, 20b) an application which provides at least one function going beyond the standard operation of the bank-note processing machine, wherein the bank-note processing machine (20a, 20b) comprises at least one checking device which captures raw data and/or measuring data of the bank notes processed with the bank-note processing machine (20a, 20b), wherein the software module implemented on the application server provides an application which is arranged for processing the raw data and/or measuring data captured by the checking device of the bank-note processing machine (20a, 20b), characterized in that the raw data and/or measuring data provided by the checking device of the bank-note processing machine (20a, 20b) comprise serial-number data of the bank notes processed by the bank-note processing machine (20a, 20b), wherein the application server is arranged, due to a serial-number application executed thereon, for storing in a serial-number archive the serial-number data provided by a bank-note processing machine (20a, 20b), and supervising the flow of bank notes between the bank-note processing machines (20a, 20b) that are in communication with the application server, using the serial-number data provided by a bank-note processing machine (20a, 20b) as well as using the serial-number archive.