How to design a data provider

Anas TINA used Ask the Experts™
I am developing an Electronic Medical Records application which should connect to medical equipment to get the data emitted by this equipment and save it to database.

The equipment also prints the data on a paper.

How can I design a solution by which if the connection from the computer to the equipment is lost, the doctor should be able to enter the data on the paper to the GUI of the App.
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Chief Technology Ninja
Distinguished Expert 2018
Hi Anas,

You can have your exception handling mechanism triggered whenever the connection to the equipment is lost and when a specific exception is caught (Connection lost), you can offer to turn on the UI for manual editing. In the background, you can keep checking (if this is near real time data) if the connection is back online and once it is, you can offer the doctor to switch back to automatic entry mode.


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