c# itextsharp create barcode Figure A-10. Working the request in the Product queue in Visual Basic .NET

Creation ECC200 in Visual Basic .NET Figure A-10. Working the request in the Product queue

Figure A-10. Working the request in the Product queue
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Because there is only one item in the Product queue, it was automatically assigned. You can edit or append to the Action Taken field. You can also reroute this request to another queue, if necessary. For this request, append a note to the Action Taken field and leave the Route Next field blank. Click the Complete button. The page should look like the one shown in Figure A-11.
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Figure A-11. Request moved to QC mode Notice that this request is still in the Product queue, but the QC column shows True . The Product queue is configured so that all requests in the Product queue must go through a QC review. Consequently, the request is put back into the queue in QC mode. Select the Product queue again and the request should be displayed; this time in QC mode, as shown in Figure A-12.
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Figure A-12. Performing QC review
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In QC review, you can view and modify the Action Taken. Edit this field and click the Complete button. The request is now complete. Figure A-13 shows the updated queue list with only the remaining items in the Marketing queue.
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Figure A-13. Updated queue list
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Tracking the Workflow
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Close the web application and go back to Visual Studio. From the Server Explorer, open the contents of the QueueTrack table. The results should be similar to those shown in Figure A-14.
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Figure A-14. Showing the tracking results The QueueTrack table records the various events that occurred on each of the requests: Started, Assigned, Route, QC, and so on. The request that you just worked was started in the Marketing queue. It was then assigned to an operator and then routed to the Product queue. It was again assigned to the same operator and then put into QC mode. Finally, it was assigned to the operator for a third time this time in QC mode.
Generic Queue Logic
Using queues for managing human tasks is a common practice that can be used in many applications. I designed this solution to encapsulate the generic activities in a separate project called UserTasks. This should help you to reuse this logic more easily in your own applications.
APPENDIX SAMPLE WORKFLOW PROJECT
Database Design
Figure A-15 shows the tables used by the UserTasks project. You can also view this diagram by opening the UserTasks.dbml file in the UserTasks project.
Figure A-15. Database design for the UserTasks project The database contains both a Queue and a SubQueue table. The queues that you used, such as Marketing and Product, are really subqueues, and this solution uses a single queue called Request. This approach allows you to reuse the same tables (and workflow activities) for any number of human-centric workflow tasks. The Queue and SubQueue tables provide configuration options such as SupportsQC (at the queue level) and AllowSelection (at the subqueue level). The SubQueue table includes the Frequency column, which defines how often requests in this subqueue need to be reviewed. The NumberSinceLastEval is used to keep track of this to know when it s time to force another review. The OperatorConfig table provides other QC-related options (see 20 for more details.) The QueueInstance table is the main table that drives the queue logic. A record is created for every request. It keeps track of what subqueue the request is currently in, whether it s in QC mode, and who it is currently assigned to. The QueueTrack table is populated by the tracking extension in response to userdefined tracking events.
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Activities
The UserTasks project is an activity library project that provides activities that can be dropped onto other workflows. The included activities are listed in Table A-1. Table A-1. Activities provided in the UserTasks project
Activity Name
AssignQueue AssignQueueInstance CompleteInstance CreateQueueInstance GetQueueInstances
Description
Moves a QueueInstance to the specified subqueue. Assigns a QueueInstance to the specified operator. Provides QC and rerouting logic. Creates a new QueueInstance record. Returns the available QueueInstance records in the specified subqueue (if allow selection is turned off, it returns only the oldest record). Loads the specified QueueInstance. Returns the number of records in each queue/subqueue. Moves the specified QueueInstance into QC mode. Unassigns the current operator and makes this QueueInstance available to be assigned to another operator.
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