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ABBYY FlexiCapture has a multi-layered client-server architecture.

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Server side

The server side has three layers:

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Application layer

  • Application Server — a web service in Internet Information Services (IIS) that acts as the main gateway for HTTP/HTTPS traffic. It verifies user authentication and authorization and runs the FlexiCapture business logic.
  • Licensing Server — a service that manages FlexiCapture licenses and tracks license usage across all connected clients.

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Processing layer

  • Processing Server — a service that manages a pool of Processing Stations for distributed computing.

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Data storage layer

  • Database — a repository of processing settings, personal user data, and statistics on processed documents and documents in progress.
  • FileStorage — a store of document images and data.
Each of these components can be installed on a separate computer for customizable security, reliability, and independent scaling.

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Client side

  • Scanning Stations and Verification Stations — capture document images, feed them to FlexiCapture, and verify the extracted data. They are available as:
    • Local clients
    • Web clients that run in a browser
    • Mobile applications
  • Processing Stations — import and process images, perform optical character recognition (OCR), run custom scripts, export captured data to the customer’s ERP system, and perform various service operations.
  • Administration and Monitoring Web Console — administers the system and monitors document processing.
  • Project Setup Station — configures document and data processing settings.
The following diagram shows how these components fit together:
Diagram of the multi-layered ABBYY FlexiCapture client-server architecture, with web, mobile, local, and monitoring clients connecting across a firewall in the DMZ to the Application Layer (Licensing Server and Application Server web service), the Processing Layer (Processing Server and Processing Stations), and the Data Layer (Database and File Storage), plus the Administration and Monitoring Console and Project Setup Station.