Computer apparatus and method including a disconnect mechanism for communicating between software applications and computers on the world-wide web

• US 6,901,425 B1
• Filed: 12/23/1996
• Issued: 05/31/2005
• Est. Priority Date: 12/23/1996
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Selden, Jeffrey Edward, Olson, Diane Elaine, Dykes, Pernell James
• Primary Examiner(s): Caldwell, Andrew
• Application Number:
  US08/772,738
• Time in Patent Office: 3,081 Days
• Field of Search: 707/10, 707/3, 707/4, 395/200.33, 395/200.48, 395/200.49, 395/200.56, 709/203, 709/218, 709/217, 709/226
• US Class Current: 709/203
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/142 Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

According to the preferred embodiment, a computer system and method for providing access to a software application from a web browser over the WWW is disclosed. The system includes one or more computers executing a web browser, a web server application, an application gateway, and a software application. The system and method allows a user of the web browser to access the software application. The user inputs data via the web browser, which is communicated to the web server application. The application gateway then generates a conversation identifier to identify this conversation between the web browser and the software application. The application gateway performs the function requested in the web server input data by formatting the appropriate commands with the software application. The operation of the software application can be suspended at any time by calling a disconnect mechanism. The disconnect mechanism directs the application gateway to save the state of the software application such that the software application can be restarted later. This system thus allows complex software application processes that may need to be suspended before completion to be directed from a remote based web browser.

Claims

1. A computer system for communicating between a plurality of web browsers and a software application, said computer system comprising:

at least one Central Processing Unit (CPU);

a memory coupled to said CPU;

a disconnect mechanism, said disconnect mechanism residing in said memory and being executed by said CPU, said disconnect mechanism being used by said software application to facilitate a request for input from one of said plurality of web browsers such that said software application need not wait for said input.

2. The computer system of claim 1 wherein said disconnect mechanism stores state data and a conversation identifier relating to each conversation between one of the plurality of web browsers and the software application when said software application process is suspended such that said state data can be retrieved when said software application process is resumed.

3. The computer system of claim 1 further comprising a web server application in communication with at least one of the plurality of web browsers, the web server application residing in said memory and being executed by said at least one CPU.

4. The computer system of claim 3 further comprising an application gateway in communication with the web server application and the software application, the application gateway residing in the memory and being executed by said at least one CPU, the application gateway including said disconnect mechanism and further comprising:

an identifier mechanism, said identifier mechanism generating a conversation identifier for each conversation between one of said plurality of web browsers and said software application.

5. The computer system of claim 1 wherein the software application is a process engineering software application.

6. The computer system of claim 1 wherein the software application is a workflow management software application.

7. The computer system of claim 1 wherein the disconnect mechanism comprises a disconnect application program interface (API) in communication with at least one running process of said software application.

8. The computer system of claim 7 wherein said at least one running process comprises at least one activity program that executes under the direction of the software application, the disconnect API communicating between the at least one activity program and the application gateway.

9. The computer system of claim 8 wherein said disconnect API is called by the at least one activity program.

10. The computer system of claim 1 wherein the web browser is executed on a client workstation by said at least one CPU.

11. The computer system of claim 4 wherein the web server application is executed on a web server computer by said at least one CPU.

12. The computer system of claim 11 wherein the application gateway is executed on the web server computer by said at least one CPU.

13. The computer system of claim 4 wherein the application gateway is executed on a first computer by said at least one CPU.

14. The computer system of claim 4 wherein the software application is executed on a second computer having at least one CPU.

15. The computer system of claim 14 wherein the application gateway is executed on the second computer by said at least one CPU.

16. The computer system of claim 14 wherein the application gateway is executed on a first computer by said at least one CPU.

17. A program product for communicating between a plurality of web browsers and a software application, said program product comprising:

signal bearing media;

a disconnect mechanism stored on said signal bearing media, said disconnect mechanism being used by said software application to facilitate a request for input from one of said plurality of web browsers such that said software application need not wait for said input.

18. The program product of claim 17 wherein said disconnect mechanism stores state data and a conversation identifier relating to each conversation between one of the plurality of web browsers and the software application when said software application process is suspended such that said state data can be retrieved when said software application process is resumed.

19. The program product of claim 17 further comprising a web server application in communication with at least one of the plurality of web browsers, the web server application residing in said memory and being executed by said at least one CPU.

20. The program product of claim 19 further comprising an application gateway in communication with the web server application and the software application, the application gateway residing in the memory and being executed by said at least one CPU, the application gateway including said disconnect mechanism and further comprising:

an identifier mechanism, said identifier mechanism generating a conversation identifier for each conversation between one of said plurality of web browsers and said software application.

21. The program product of claim 17 wherein the software application is a process engineering software application.

22. The program product of claim 17 wherein the software application is a workflow management software application.

23. The program product of claim 17 wherein the disconnect mechanism comprises a disconnect application program interface (API) in communication with at least one running process of said software application.

24. The program product of claim 23 wherein said at least one running process comprises at least one activity program that executes under the direction of the software application, the disconnect API communicating between the at least one activity program and the application gateway.

25. The program product of claim 24 wherein said disconnect API is called by the at least one activity program.

26. The program product of claim 17 wherein the web browser is executed on a client workstation by said at least one CPU.

27. The program product of claim 20 wherein the web server application is executed on a web server computer by said at least one CPU.

28. The program product of claim 27 wherein the application gateway is executed on the web server computer by said at least one CPU.

29. The program product of claim 20 wherein the application gateway is executed on a first computer by said at least one CPU.

30. The program product of claim 20 wherein the software application is executed on a second computer having at least one CPU.

31. The program product of claim 30 wherein the application gateway is executed on the second computer by said at least one CPU.

32. The program product of claim 30 wherein the application gateway is executed on a first computer by said at least one CPU.

33. A computer-implemented method for communicating between at least one web browser and a software application, the method comprising the steps within said software application of:

receiving a request from said at least one web browser;

initiating processing based on said request;

determining that input from said at least one web browser is required;

issuing a request for said input; and

disconnecting from said web browser to facilitate said request for input such that said software application need not wait for said input.

34. The computer-implemented method of claim 33 wherein said disconnecting step is performed via interaction with a disconnect mechanism.