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Workshop on Application of New Information Technology to Population Data
Bangkok, 12-20 October 1999
AFPSPRO - modules description (Vendor material)
System Architecture
A. Configuration Module:

Using the Configuration module, one can create multiple forms-processing applications in just a few hours without writing a single line of code.  The configuration module allows to define the application's building blocks - the forms (both their logical structure and their physical structure) as well as the data flow and the processing type they undergo.

B. The Production Module (Command & Control)

The Production Module is the run-time module used to test and run the generated applications. Through Command & Control, users operate the Input, Processing, Tile Mode, Completion, Exception and Archive modules, which comprise the full data-capture process. The whole process id being monitored in real time by the Workflow Manager module.

B-1. The Input module supplies the form images to the system from several sources. An image can be obtained from different sources - Scanner, fax or existing file.
B-2. The Processing module receives batches created by the Input module. This station is responsible for recognizing both the forms and the characters - OCR / ICR / OMR / Bar Code. The images undergo image enhancement, automatic form recognition, form removal and optical character recognition. In order to improve the system recognition results, several OCR / ICR results can be merged and checked using a set of powerful voting algorithms. In addition, the system allows implementing on the recognized characters any kind of automatic validation procedures or rules as well as automatic comparison to pre-defined database tables.
B-3. The Tile Mode workstation is used for mass validation and decreasing the substitution errors of the recognition engines. The module allows the immediate viewing of recognition engine results grouped in order by numeric and/or alpha characters. Grouping the recognition results by fields within batches, for example by grouping machine-type and hand-print fields separately, makes it easier to spot false results and send them for correction in the Completion module.
B-4. The Completion module receives data produced by the Processing module. The unrecognized data are then corrected and completed manually.  The forms can be displayed either field by field (Field mode) or page by page (Page mode). For higher throughput, In field mode, the same fields from the entire batch appear on the screen. The typist can customize the appearance of the data completion screen in terms of fonts, colors, and more.
B-5. The Exception module collects the pending exceptions that were marked By the typist during the Completion stage and presents them to the exception handler for clarification and resolution.
B-6. The WorkFlow Manager module control the system as well as the flow of data across the automatic data capture network during the run time cycle. The WorkFlow Manager provides the system administrator a graphical interface enabling real time visual feedback of the system workload and the status of the different jobs, in order to control the batches and the workflow, identify bottlenecks, manage the queues, balance the workload, and supervise the post-processing procedures, automatic recovery and other inter-systems operations.
C. Off-Line Module

Once a batch process is completed data and images can be backed up and retrieved using a special application, allowing an operator to browse all data and images of material processed up to that moment, even before it was transferred to the mainframe.



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