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2140 W. County Road C
St. Paul, MN 55113

(651) 636-3890
Fax (651) 636-3894

CareFacts™ Courier

CareFacts™ Courier serves as the back-office database of all relevant patient, nurse and other clinician information. Courier is a server side application that serves as the corporate repository that integrates and distributes changes from the distributed laptops, workstations and PDAs. To minimize update time during remote modem update, the integration of data into either the central or local database is completed after the transmission while the computers are not connected. Therefore, the integrity of the transmission can be verified before any of the data in the transmission is integrated into the respective database.

All changes made on the client-side computer, including additions, modifications and deletions to existing data, are included in an upload table. During update, the upload table is copied to its assigned mailbox on the server. Simultaneously, all downloads queued up for this license are downloaded from their respective mailboxes. The server side executable (SSE) continuously searches for new upload tables to process. For each table, the SSE verifies the integrity of the upload data, integrates changes into the central database, creates download table entries for each additional client PC, imports changes from other applications, exports changes to other applications and moves the uploaded file from license’s assigned mailbox to storage.

With this distributed database architecture, each client PC contains a subset of the central database that each PC can access exclusively. Therefore, system response time is not an issue since all operations are performed on the local database. Update speed is also maximized because verification, integration and export do not occur while on-line. Moreover, this approach separates transmission issues from database management issues. As a practical matter, the number of simultaneous users is limited only by the number of available modem ports and phone lines, allowing many transmissions to be processed at one time.

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