1. Computer system for data management including at least the management of data relating to the trading of warrants, comprising

a data processing system (1), an input unit (2), a display unit (3) and a data input (5), wherein

the display unit (3) displays a first mask having a format allowing the input of a request for specific data by the input unit (2),
the data input (5) is read if the request is input by the input unit (2),
the display unit (3) displays a second mask including the requested data, and
the data processing system (1) holds the requested data for a predetermined time period Tset and performs a transaction relating to the specific data, if a transaction request is input by the input unit (2) during a predetermined time period Tset.



2. Computer system according to claim 1,
characterized in that
the first mask is a trading mask (13) and the second mask is a quotation mask (14).

3. Computer system according to claim 1 or 2,
characterized in that
the trading mask (13) allows the input of an identification number for the specific data by the input unit (2) in order to read the specific data from the data input(s).

4. Computer system according to claim 3,
characterized in that
the identification number is a stock exchange number.

5. Computer system according to claim 1 or 2,
characterized in that
the trading mask (13) allows the input of a request for a rates page (18) including a plurality of specific data and the rates page (18) allows the input of the request for specific data.

6. Computer system according to at least one of claims 1 to 5, characterized in that
the data processing system (1) comprises a security network (6) connected to an external device (7), a security device (8), a data management device (9), a data interface device (10) and an output device (11), the external device (7) includes the input unit (2) and the display unit (3).

7. Computer system according to claim 6,
characterized in that
upon the input of the request for specific data by the input unit (2),

the external device (7) outputs the request for specific data and transmits the request to the security network (6),
the security network (6) checks the request regarding its authorization and transmits the same to the data management device (9) if the performed checking resulted in an authorization of the external device (7) for the data management device (9),
the data management device (9) outputs a message to the security network (6) in order to access data (5) from the data interface device (10) if the performed checking resulted in an authorization of the external device (7) for the data interface device (10),
the data interface device (10) transmits the accessed data to the data management device (9) via the security network (6) and
the data management device (9) transmits the data to the external device (7) via the security network (6).


8. Computer system according to claim 6 or 7,
characterized in that
each sending device transmits a respective identification information and the security network (6) checks for every data transfer through the same if the identification of the respective sending device fits with prestored information stored during an authorization procedure.

9. Computer system according to at least one of claims 6 to 8, characterized in that
during the authorization procedure

the security network (6) reads identification information from the external device (7) and
the security device (8) checks the identification information and outputs an access authorization which is stored in the security network (6).


10. Computer system according to at least one of claims 6 to 9, characterized in that
at the time of the first connection of the external device (7) to the security network (6), the security network (6) sends a seed to the external device (7) and the external device (7) encrypts the identification information according to the seed and transmits the encrypted identification information to the security network (6).

11. Computer system according to claim 10,
characterized in that
the security network (6) transmits the received encrypted identification information together with the seed to the security device (8) which decrypts the identification information and performs a security check.

12. Computer system according to at least one of claims 6 to 11,
characterized in that
during the authorization procedure the security device (8) is checking if

the transmitted user information matches with data stored in an authorization file in the security device (8),
a predetermined number of security requirements are fulfilled, including data of access, disusered and number of login fails, and
the identification information was sent from the security network (6), and
the security device (8) is reading a prestored address information out of an address file if the security check is positively fulfilled and sends the address information to the security network (6).

13. The computer system according to claim 12,
characterized in that
the security network (6) stores the address information in order to define to what parts of the computer system the external device (7) may have access.

14. Computer system according to claim 12 or 13,
characterized in that
the security device (8) determines if the prestored address information is sent from the security network (6) by checking if the channel on which the security network (6) is sending is equal to a channel given to the security network (6) during the setup procedure, wherein the security network (6) is the only device allowed to transmit and receive data to and from the security device (8).

15. Computer system according to at least one of claims 6 to 14, characterized in that
the data management device (9) is storing a dependency list including information regarding the devices which are needed for a specific data management.

16. Computer system according to claim 15,
characterized in that
during a start-up procedure the data management device (9) is checking according to the dependency list if all required devices are in an on-line status before the data transfer for a specific data management is activated.

17. Computer system according to at least one of claims 6 to 16, characterized in that
the data interface device (10) receives permanently a data stream including at least warrant rates and stores the data in specific memory locations, wherein new data coming in is overwriting the old data on the specific memory location.

18. Method for operating a computer system for data management including at least the management of data relating to the trading of warrants (CATS-OS) comprising the steps of

displaying on a display unit (3) a first mask having a format allowing the input of a request for specific data by an input unit (2),
reading the requested data, if the request is input by the input unit (2),
displaying on the display unit (3) a second mask including the requested data,
holding the requested data for a predetermined time period Tset, and
performing a transaction relating to the specific data if a transaction request is input by the input unit (2) during the predetermined time period Tset.


19. Method according to claim 18,
characterized in that
the first mask is a trading mask (13) allowing the input of an identification number for the specific data by the input unit (2) in order to read the specific data from the data input (5).

20. Method according to claim 19,
characterized in that
the identification number is a stock exchange number.

21. Method according to claim 18,
characterized in that
the first mask allows the input of a request for a rates page (18) including a plurality of specific data and the rates page (18) allows the input of the request for specific data.

22. Method according to claim 21,
characterized in that
the rates page (18) allows the input of a refresh rates request resulting in a reading of the listed plurality of specific data and displaying the same in the rates page (18) on the display unit (3).

23. Method according to at least one of claims 18 to 22,
characterized in that
the input of a request for specific data or the refresh rates request causes the reading of a data stream being permanently received by the system from the data input (5).

24. Method according to at least one of claims 18 to 23,
characterized in that
the second mask is a quotation mask (14) allowing the input of a re-request for the specific data, if the transaction request is not input during the predetermined time period Tset.

25. Method according to at least one of claims 18 to 24,
characterized by
displaying a trade confirmation mask (15) on the display unit (3), if the transaction request is input in time, including transaction information.

26. Method according to at least one of claims 18 to 25,
characterized in that
the trading mask (13) and the quotation mask (14) are displayed on the display unit (3) on different screens or on one screen.

27. Method according to at least one of claims 18 to 26,
characterized in that
the specific data include warrant rates.

28. Method according to at least one of claims 18 to 27,
characterized in that
the data management comprises the management of data relating to the trading of stocks, bonds, derivatives or foreign exchange, wherein the specific data include stock rates, bond rates, derivative rates or foreign exchange rates.