Representation of collaborative multi-user activities relative to shared structured data objects in a networked workstation environment

• US 5,008,853 A
• Filed: 12/02/1987
• Issued: 04/16/1991
• Est. Priority Date: 12/02/1987
• Status: Expired due to Term

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Farrand, A. Brady, Maybury, William J., Hodges, Jeffery D., Lewis, Brian T., Bly, Sara A., Kupfer, Michael D., Tallan, Michael L., Tom, Stephen B.
• Primary Examiner(s): CLARK, DAVID
• Application Number:
  US07/127,993
• Time in Patent Office: 1,231 Days
• Field of Search: 364/518, 364/521, 364/200 MS File, 364/900 MS File, 379/53, 379/54, 379/96, 379/100, 358/85, 358/86, 340/716, 340/718, 340/721, 340/717
• US Class Current: 715/751
• CPC Class Codes: G06F 16/1774 Locking methods, e.g. locking methods for file systems allowing shared and concurrent access to files
• CPC Class Codes: G06Q 10/10 Office automation; Time management

Abstract

A multi-user collaborative system in which the contents as well as the current status of other user activity of a shared structured data object representing one or more related structured data objects in the form of data entries can be concurrently accessed by different users respectively at different workstations connected to a common link. The WYSIWIS user interface representation of the shared structured data object includes an ordered listing of such entries that are maintained by the structured data object and various attributes of each listed entry, inter alia, the type and class of entry; the revision number of the shared structured data object; the number of pages and revision number of each structured data object entry; the date of creation and last revision of each such entry; whether an entry can be accessed by a user and, if not, who has prevented such access to prevent concurrent editing; whether a local instance of an entry is present on a user'"'"'s system; and a provision for miscellaneous notes or comments relative to each entry for view by other users. Means is provided for maintaining current information relative to the shared structured object and its entries on a user initiated demand updated basis invoked by a user operation, which operation requires updated information to properly implement the operation.

Claims

1. A method for operating a collaborative system that includes a plurality of workstations each having a respective display and a respective user input device, the collaborative system further including shared data, each of the workstations being connected for accessing the shared data, the shared data including a set of parts, the method comprising the steps of:

presenting on the respective display of a first one of the workstations a local representation of the shared data;

the local representation of the shared data including, for each of the parts of the shared data, a respective small-scale representation occupying a small part of the first workstation'"'"'s respective display;

presenting on the respective display of a second one of the workstations a full-scale representation of a first one of the parts of the shared data, the full-scale representation occupying a substantial part of the second workstation'"'"'s respective display; and

after receiving from the second workstation'"'"'s respective user input device a signal requesting an operation affecting the first part of the shared data, including in the first part'"'"'s respective small-scale representation an indication of the operation affecting the first part.

2. The method of claim 1, further comprising the step of receiving a signal from the second workstation'"'"'s respective user input device requesting presentation of the first part'"'"'s full-scale representation, the step of presenting the full-scale representation being performed in response to the signal requesting presentation.

3. The method of claim 2 in which the first part'"'"'s full-scale representation is a window.

4. The method of claim 1 in which the local representation is a window, the step of presenting the local representation comprising presenting a list of entries in the window, each respective small-scale representation being one of the entries in the window.

5. The method of claim 4 in which each part'"'"'s small-scale representation includes a name of the part.

6. The method of claim 4 in which the operation affecting the first part is a locking or unlocking operation, the step of including the indication comprising inserting or deleting a lock icon from the first part'"'"'s respective small-scale representation.

7. The method of claim 4 in which the operation affecting the first part is a save operation, the step of including the indication comprising including an indication of the save operation in the first part'"'"'s respective small-scale representation.

8. The method of claim 7 in which the indication of the save operation is a revision number.

9. The method of claim 7 in which the indication of the save operation is a time stamp.

10. The method of claim 7 in which the indication of the save operation is deleting a lock icon.

11. The method of claim 4, further comprising the steps of:

receiving a signal from the first workstation'"'"'s respective user input device requesting presentation of a property sheet for the first part'"'"'s small-scale representation; and

presenting on the first workstation'"'"'s respective display an entry property sheet indicating attributes of the first part.

12. The method of claim 11 in which, if the first part is under a lock when the signal requesting property sheet presentation is received, the step of presenting the entry property sheet comprises presenting an indication of the lock.

13. The method of claim 12 in which the indication of the lock includes a name of a user who requested the lock.

14. The method of claim 11 in which the step of presenting the entry property sheet comprises presenting a lock change symbol that can be indicated by the first workstation'"'"'s respective user input device to request an operation changing the first part'"'"'s lock status.

15. The method of claim 11 in which the first workstation contains instance data partially defining the shared data, the method further comprising, if the first workstation'"'"'s instance data is out-of-date, updating the instance data in response to the request for property sheet presentation.

16. The method of claim 4 in which the local representation includes a lock change symbol that can be indicated by the first workstation'"'"'s respective user input device to request an operation changing a lock status of one of the parts of the shared data.

17. The method of claim 1, further comprising the step of receiving from the first workstation'"'"'s respective user input device a signal requesting an operation affecting the shared data, the step of including the indication being performed in response to the signal from the first workstaion'"'"'s respective user input device.

18. A collaborative system comprising:

a plurality of workstations each having a respective display and a respective user input device;

shared data means for storing shared data, the shared data including a set of parts; and

user interface means connected for accessing the shared data stored by the shared data storing means and for presenting on the respective display of each of the workstations a respective local representation of the shared data;

the local representation of the shared data including, for each of the parts of the shared data, a respective small-scale representation occupying a small part of the respective display;

the user interface means further being for presenting on the respective display of any of the workstations a full-scale representation of any of the parts of the shared data, the full-scale representation occupying a substantial part of the respective display;

the user interface means further being for receiving from the respective user input device of any of the workstations at which the full-scale representation of a first one of the parts of the shared data is presented a signal requesting an operation affecting the first part of the shared data and, after receiving the signal requesting the operation, including in the first part'"'"'s respective small-scale representation on the respective display of each workstation an indication of the operation affecting the first part.

19. The system of claim 18 in which the shared data is a book data object, the first part of the shared data being a first document data object defining a respective set of pages.

20. The system of claim 19 in which the book data object further includes a plurality of document data objects including the first document data object, each of the document data objects defining a respective set of pages, the plurality of document data objects together defining a document.