Mechanisms for web-object event/state-driven communication between networked devices

• US 6,829,630 B1
• Filed: 11/24/2000
• Issued: 12/07/2004
• Est. Priority Date: 11/24/2000
• Status: Expired due to Fees

• Current Assignee: Majandro LLC (IP Edge LLC)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Pajak, Henry G., Tredoux, Gavan L., Mountain, Highland Mary
• Primary Examiner(s): Etienne, Ario
• Assistant Examiner(s): SALAD, ABDULLAHI ELMI
• Application Number:
  US09/718,493
• Time in Patent Office: 1,474 Days
• Field of Search: 709/201, 709/203, 709/217, 709/218, 709/226, 709/224, 709/223, 719/318, 719/315, 719/316, 719/328, 719/330, 719/313, 718/102, 718/101, 715/513, 707/100, 707/10
• US Class Current: 709/201
• CPC Class Codes: H04L 41/0253 using browsers or web-pages for accessing management information
• CPC Class Codes: H04L 41/028 for synchronisation between service call and response
• CPC Class Codes: H04L 41/06 Management of faults, events, alarms or notifications
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066

Abstract

Web-based event/state-driven mechanisms and methods for simplifying communication between networked multifunction devices, such as copiers, printers, facsimile machines and multifunction devices using a networked database for the creation and presentation of device metrics and status data. Web-based multifunction performance metrics and calculations themselves are created within concurrent (multiple instances) of Web objects, wherein a Web object is a self-contained entity with data and a state machine lifecycle. State changes inside and outside the Web object are made by sending events to event queues and routing them to other state machines within other Web objects or instances of the same Web object. Data and events between Web objects are formed into a regular event syntax providing a simpler method of communication than those of procedural programming approaches. The arguments of the events are processed by specific instances of state machines that compose each Web object to perform an appropriate action. The metrics displays and corresponding calculations within the Web object'"'"'s state machine are highly self-contained and concurrent, hiding networked database contention and database locking, and enforcing atomicity with it'"'"'s runtime software. Calculations are performed and displayed from within a very small context within each Web object'"'"'s state minimizing external communications and further simplifying software application development efforts.

Claims

1. A method for communication between a plurality of networked devices in a Web-based management system, comprising:

automatically providing networked device information from the networked devices to at least one Web object over a distributed network, each Web object is being a self-contained entity with object data, an associated presentation and a state machine lifecycle;

processing events using the state machine lifecycle of the at least one Web object; and

providing a runtime that establishes atomicity for the at least one Web object with respect to at least one of events, actions and data that occur in a state of another Web object state machine,

wherein Web objects are template-driven mechanisms that compose Web pages.

2. The method of claim 1, further comprising communicating between the at least one Web object and at least one other Web object concurrently through events that are processed using the state machine lifecycle of the at least one Web object.

3. The method of claim 1, further comprising generating at least one subsequent event in response to a change in state of the state machine lifecycle of the at least one Web object.

4. The method of claim 1, wherein processing the at least one event comprises atomically processing the at least one event.

5. The method of claim 1, wherein processing the at least one event comprises atomically processing actions within a state.

6. The method of claim 1, further comprising managing events using an event queue.

7. The method of claim 6, wherein managing events using the event queue comprises receiving events, queuing the received events and transmitting the queued events in order to the at least one Web object.

8. The method of claim 1, further comprising receiving, at the at least one Web object, at least one event or data access directly from at least one other Web object.

9. The method of claim 1, further comprising accessing data directly from at least one other Web object by the at lest one Web object.

10. The method of claim 1, further comprising synchronously receiving events at the at least one Web object.

11. The method of claim 1, further comprising asynchronously receiving events at the at least one Web object.

12. The method of claim 1, further comprising analyzing the networked device information to obtain data related to the networked device information.

13. The method of claim 12, wherein analyzing the networked device information comprises processing at least one event such that the state machine lifecycle of at least one of the Web objects changes state.