Method of executing on a station of a communication network a computer program represented in a markup language

• US 20040040028A1
• Filed: 07/02/2003
• Published: 02/26/2004
• Est. Priority Date: 07/04/2002
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Moreau, Jean-Jacques
• Granted Patent: US 7,594,235 B2
• Time in Patent Office: Days
• US Class Current: 719/310
• CPC Class Codes: G06F 8/31 Programming languages or programming paradigms
• CPC Class Codes: G06F 9/547 Remote procedure calls [RPC]; Web services

Abstract

A method of execution on a station of a communication network of a computer program represented in a markup language comprises a step of reading a tag comprising the identification of an instruction; a step (S40) of identifying an electronic address associated with the tag comprising the identification of an instruction; a step (S41) of comparing the electronic address with the local address of the station; and, if the electronic address is different from the local address, a step (S43, S45) of sending a request to a server station of the network corresponding to the electronic address for obtaining the execution of the instruction.

Use in particular for executing a computer program distributed over different servers of a communication network.

Claims

1. A method of executing on a station of a communication network a computer program represented in a markup language, comprising the following steps:

reading a tag comprising the identification of an instruction;

identifying an electronic address associated with said tag comprising the identification of an instruction;

comparing said electronic address with the local address of said station; and

if said electronic address is different from said local address, sending a request to a server station of the network corresponding to said electronic address for obtaining the execution of said instruction.

2. A method of execution according to claim 1, wherein the electronic address is recorded as an attribute of said tag comprising the identification of an instruction.

3. An execution method according to claim 1, wherein at the sending step, a request for remote execution of a function is sent to said server station of the communication network.

4. An execution method according to claim 3, further comprising a step of receiving an execution result of said function.

5. An execution method according to claim 1, wherein at the sending step, a request for obtaining the code of a function to be executed is sent to said server station of the communication network.

6. A method of execution according to claim 5, further comprising a step of receiving said code of the function to be executed and a step of executing the function by said station.

7. An execution method according to claim 6, further comprising a step of storing in memory said code of the function received.

8. An execution method according to claim 1, wherein at the sending step, a request for obtaining a variable value is sent to said server station of the communication network.

9. An execution method according to claim 8, further comprising a step of receiving a response and extracting said variable value.

10. An execution method according to claim 1, wherein at the sending step, a request for updating a variable is sent to said server station of the communication network.

11. An execution method according to claim 8, further comprising a step of storage in memory of said extracted variable value.

12. A method of execution according to claim 11, further comprising a step of remote updating of a variable of a server station of the communication network based on said variable value stored in memory.

13. A method of execution according to claim 1, wherein said computer program is represented in a markup language using the syntax of the markup language XML.

14. A method of execution according to claim 1, wherein the communication network implements a method of communication of HTTP type between the servers of said network.

20. A computer, comprising means adapted to implement an execution method according to claim 1.

21. A communication network, comprising means adapted to implement the execution method according to claim 1.

22. A computer program comprising portions of software code adapted to implement the execution method according to claim 1, when said program is loaded onto a computer.

23. Means of storing information which are fixed or partially or totally removable, and adapted to store sequences of instructions of the execution method according to claim 1.

15. A device for executing on a station of a communication network a computer program represented in a markup language, comprising:

means for reading a tag comprising the identification of an instruction;

means for identifying an electronic address associated with said tag comprising the identification of an instruction;

means for comparing said electronic address with the local address of the station; and

sending means adapted for sending a request to a server station of the network corresponding to said electronic address for obtaining the execution of said instruction when said electronic address is different from said local address.

16. An execution device according to claim 15, further comprising means for receiving an execution result of a function or of a code of a function to be executed.

17. An execution device according to claim 16, further comprising means for storing in memory a code of functions to be executed.

18. An execution device according to claim 15, further comprising means for storage in memory of an extracted or updated variable value.

19. An execution device according to claim 15, wherein it is incorporated in:

a microprocessor;

a read-only memory adapted to store in memory the execution method of a computer program; and

a random-access memory comprising registers adapted to store variables modified during the execution of said program.