System Design

The UnitedChart software is designed to support distributed systems. The software was originally designed to be run on the local area networks at health care institutions. Periodically the distributed systems are synchronized to transmit new and modified medical records and to receive incoming data.

This allows the systems to continue operation internally, regardless of external problems, as long as they have electricity. The potential problems include, but are not limited to, down telephone wires, phone service failure, internet failure/slowdown, internet denial-of-service attacks, etc. Given the importance of the health care function, operation on local area networks (LAN) will offer the fastest speed while suffering the least amount of down time.

On the other hand, the web aspects of the software lead toward centralization on one remote computer. As the internet becomes more dependable and low cost high speed private data links become available, the centralized approach will be more effective.

Local system
In this documentation the term local system is used to refer to the software running on the local area network of a health care institution. A local system contains data for the patients seen by that health care institution.

Internet repository
The term internet repository refers to the master system on the internet. The internet repository contains all the medical data contained in each local system it supports. During synchronization, it receives any new or changed medical data that was entered into the local system since the last synchronization. Also, if different local systems created medical records for patients on the local system, then the records are downloaded to that system.

Translation: If other doctors prescribe drugs or add medical records to your patients, then the data is transferred into your system as part of your patient's clinical charts. Also, if when away from the office you use the internet, Palm, or phone to write prescriptions and add medical records, those changes are transferred back to the system at your health care institution.

Last update 02/15/00