System and method for managing collaborative data representations

• US 20030009603A1
• Filed: 09/12/2002
• Published: 01/09/2003
• Est. Priority Date: 12/27/2000
• Status: Abandoned Application

• Current Assignee: Advanced Reality, Inc.
• Original Assignee: Advanced Reality, Inc.
• Inventors: Hoye, Jefferson David, Ruths, Derek Augustus Samuel
• Application Number:
  US10/242,596
• Publication Number:
  US 20030009603A1
• Time in Patent Office: Days
• US Class Current: 719/318
• CPC Class Codes: G06F 9/465 Distributed object oriented systems remote method invocation [RMI] G06F9/548

Abstract

A collaborative platform may provide for mutability regarding the type characteristic (server or client) of a representation of a collaborative resource within the collaborative platform. A collaborative resource may be hosted by one participant'"'"'s collaborative platform (as a server data representation) and reflected in each other participant collaborative platform (as a client data representation). Mutability allows the collaborative resource to be dynamically re-hosted from one participant to another. Mutability provided by the collaborative platforms allows the server data representation on one system to become a client data representation, and a client data representation on another system to become the server data representation. Mutability may provide for load balancing and/or transparent fail over protection within the collaborative environment.

Claims

1. A system, comprising:

a network; and

a plurality of participant devices coupled to the network for collaborating on a collaborative resource, wherein each of the participant devices comprises a local data representation of the collaborative resource;

wherein the local data representation at one of the participant devices is a server representation of the collaborative resource and the local data representations at the other participant devices are client representations of the collaborative resource, wherein the participant device having the server representation is responsible for coordinating state changes to the collaborative resource among the local data representations of the participant devices over the network; and

wherein one of the participant devices having one of the client representations is configured to change its client representation into the server representation of the collaborative resource and take over responsibility for coordinating state changes to the collaborative resource among the local data representations of the participant devices.

2. The system as recited in claim 1, wherein the participant devices having client representations of the collaborative resource are configured to connect to the participant device having the server representation for communicating state changes to the collaborative resource.

3. The system as recited in claim 2, wherein, in response to one of the participant devices changing its client representation to the server representation, the participant devices having client representations of the collaborative resource are configured to change their connection for communicating state changes to the participant device that changed its client representation to the server representation.

4. The system as recited claim 1, wherein the participant device configured change its client representation into the server representation is configured to change its client representation into the server representation in response to determining that the current server representation is no longer functioning as the server representation for coordinating state changes to the collaborative resource among the local data representations.

5. The system as recited in claim 4, wherein the current server representation is determined to no longer be functioning as the server representation if the participant device configured to change its client representation into the server representation is no longer able to connect to the participant device having the current server representation over the network.

6. The system as recited in claim 1, wherein the participant device configured change its client representation into the server representation is configured to change its client representation into the server representation in response to receiving a mutation instruction to become the server representation.

7. The system as recited in claim 1, wherein the participant device having the server representation of the collaborative resource is configured to change its server representation into a client representation and send a mutation instruction to one of the other participant devices to change its client representation into the server representation.

8. The system as recited in claim 7, wherein the participant device having the server representation is configured to send the mutation instruction in response to a load on the participant device exceeding a threshold.

9. The system as recited in claim 7, wherein the participant device having the server representation is configured to send the mutation instruction in response to detecting a condition that will prevent the participant device from fulfilling responsibility for coordinating state changes to the collaborative resource among the local data representations of the participant devices over the network.

10. The system as recited in claim 1, wherein a plurality of the participant devices having client representations are configured change their respective client representation into the server representation of the collaborative resource and take over responsibility for coordinating state changes to the collaborative resource among the local data representations of the participant devices.

11. The system as recited in claim 10, wherein in response to a mutation condition, one of the participant devices configured change its client representation into the server representation is selected to change its client representation into the server representation and take over responsibility for coordinating state changes to the collaborative resource among the local data representations of the participant devices.

12. The system as recited in claim 11, wherein the participant device selected to change its client representation into the server representation is selected by the participant device hosting the server representation prior to the mutation condition.

13. The system as recited in claim 11, wherein the participant device selected to change its client representation into the server representation is selected according to a mutation list that indicated an order for participant devices to host the server representation.

14. The system as recited in claim 13, wherein a copy the mutation list is stored at each participant device and updated by the participant device having the server representation.

15. The system as recited in claim 11, wherein the mutation condition is a forced mutation initiated by the participant device hosting the server representation prior to the mutation condition.

16. The system as recited in claim 11, wherein the mutation condition is triggered by the participant device currently having the server representation no longer being able to host the server representation.

18. The device as recited in claim 17, wherein in conjunction with changing into a client representation the local data representation is configured to send a mutation instruction to one of the other devices to change its client representation into the server representation.

19. The device as recited in claim 17, wherein the mutation condition is triggered by a load on the device exceeding a threshold.

20. The device as recited in claim 17, wherein the mutation condition is triggered by an event preventing the server representation from fulfilling responsibility for coordinating state changes to the collaborative resource among the local data representations of the devices over the network.

21. The device as recited in claim 17, wherein in response to the mutation condition, the device is configured to designate a client representation on another device to become the new server representation of the collaborative resource.

22. The device as recited in claim 17, further comprising a mutation list indicating an order for other devices to host the server representation, wherein in response to the mutation condition another device selected according to the order indicated by the mutation list to change its client representation into the server representation.

24. The device as recited in claim 23, wherein in response to receiving notification that the server representation of the collaborative resource is on a different device, the client representation is configured to change its connection for communicating state changes to the device that now has the server representation.

25. The device as recited claim 23, wherein the mutation condition comprises an event indicating that the current server representation is no longer functioning as the server representation for coordinating state changes to the collaborative resource among the local data representations.

26. The device as recited in claim 23, wherein the mutation condition is triggered by the device no longer being able to connect over the network to the device having the current server representation.

27. The device as recited in claim 23, wherein the mutation condition comprises receiving a mutation instruction to become the server representation.

28. The device as recited in claim 23, further comprising a mutation list indicating an order for client representations to become the server representation, wherein the local data representation is configured to change from a client representation into a server representation in response to a mutation condition if it is the next client representation indicated by the mutation list.

30. The method as recited in claim 29, further comprising:

in conjunction with changing into a client representation sending a mutation instruction to one of the remote locations to change its client representation into the server representation.

31. The method as recited in claim 29, wherein the mutation condition is triggered by a local processing load exceeding a threshold.

32. The method as recited in claim 29, wherein the mutation condition is triggered by an event preventing the server representation from performing said coordinating.

33. The method as recited in claim 29, further comprising, in response to the mutation condition, designating a client representation at one of the remote locations to become the new server representation of the collaborative resource.

34. The method as recited in claim 30, further comprising, in response to the mutation condition, selecting a client representation at one of the remote locations to become the new server representation according to an order indicated by a mutation list.

36. The method as recited in claim 35, further comprising, in response to receiving notification that the server representation of the collaborative resource is at a different remote location, the client representation changing its connection for communicating state changes to the remote location that now has the server representation.

37. The method as recited claim 35, wherein the mutation condition comprises an event indicating that the current server representation is no longer functioning as the server representation for coordinating state changes to the collaborative resource.

38. The method as recited in claim 35, wherein the mutation condition is triggered by no longer being able to connect over a network to the remote location having the current server representation.

39. The method as recited in claim 35, wherein the mutation condition comprises receiving a mutation instruction to become the server representation.

40. The method as recited in claim 35, wherein said changing into the server representation comprises the client representation changing into the server representation in response to the mutation condition if it is the next client representation indicated by a mutation list.

17. A device, comprising:

a network interface configured to couple the device to a network for communicating with one or more other devices; and

a local data representation of a collaborative resource, wherein the local data representation is configured as a server representation to send state change instructions through the network interface to the other devices to coordinate the state changes to client representations of the collaborative resource at the other devices;

wherein the local data representation is configured to change from the server representation into a client representation in response to a mutation condition, wherein upon changing to a client representation the local data representation is further configured to connect to a new server representation of the collaborative resource to receive state change instructions for the collaborative resource.

23. A device, comprising:

a network interface configured to couple the device to a network for communicating with one or more other devices; and

a local data representation of a collaborative resource, wherein the local data representation is configured as a client representation to receive state change instructions for the collaborative resource through the network interface from one of the other devices having a server representation of the collaborative resource;

wherein the local data representation is configured to change from a client representation into a server representation in response to a mutation condition, wherein upon changing to a server representation the local data representation is further configured to assume responsibility for sending state change instructions through the network interface to the other devices to coordinate the state changes to client representations of the collaborative resource at the other devices.

29. A method, comprising:

a server representation of a collaborative resource coordinating state changes to client representations of the collaborative resource at remote locations, wherein said coordinating comprises sending state change instructions over a network interface to the remote locations;

the server representation receiving notification of a mutation condition;

the server representation changing into a client representation in response to the mutation condition; and

upon changing to a client representation, connecting to a new server representation of the collaborative resource to receive state change instructions for the collaborative resource.

35. A method, comprising:

a client representation of a collaborative resource receiving state change instructions for the collaborative resource from remote location having a server representation of the collaborative resource;

the client representation receiving notification of a mutation condition;

the client representation changing into the server representation in response to the mutation condition; and

upon changing to a server representation, assuming responsibility for sending state change instructions to remote locations to coordinate state changes to client representations of the collaborative resource at the remote locations.