Defined behavior after errors
Define and document the behavior behaviour of your implementation in case of interoperability errors. Errors Errors are also a communication item in addition to drawing a clear line between expected and unexpected behaviorbehaviour.
The next error types should be taken into consideration:
- Errors from "Errors" section of the specification. This mainly concerns the protocol specification.
- Errors after reception of faulty artefacts from another implementation.
- Errors when processing correct artefacts by your implementation.
- Errors during generation of faulty artefacts by your implementation.
Erroneous data mapping
There is always a possibility that incoming central data cannot be imported in the data model of your application.
The cause can be e.g.:
- wrong input from the end-user of the sending application
- a bug in the sending application
- a design error in the sending application
- an unexpected dialect of the specification used by the sending application
- ...
In this case, When participating in data exchange E.g. in the Vitalink Medication Scheme. You can import data into your application that does not map on your database structure or data that are not what you expected (e.g. because you interpreted the spec differently or the sending application made a mistake). In that case, your application should always consult the user when incoming data from the central source can not cannot be processed, your application should always consult the user. Show as much machine-readable or plain text information as you can to the user so the least possible information is lost. as possible the information of the incoming data to your user. This should allow your user to correct the error manually up to a maximal level, or to gather enough information for later analysis.
Input validation
Typically, an application validates the data a user manually enters to see whether it is in the expected format and is within the range of allowed values for that input. Verify that this validation of user input is also applied for incoming data from the central source. If the validation fails, the data should be handled as erroneous data.
Transformation design
Verify that your transformation of central data is well-designed and documented. It is possible that your transformation requires more restrictions for the central data than the specification does. This extra restriction is e.g. needed for the data to be able to serve as input for the transformation. Your design documentation should include these restrictions. All data that is not suitable for the transformation should be handled as erroneous data.
Server processing
Whilst client applications can interact with the user to user to solve the processing of erroneous data, server applications can notcannot. Verify Verify that the processing of erroneous data on a server is logged, monitored and eventually presented to the user. NOG OPNEMEN IN REQ
Logging
Nog wat uitleg geven waarom dit belangrijk is en waarvoor het loggen achteraf kan dienen. Verify that enough information about manipulation of central and local data is logged to enable later analysis of possible problems. NOG OPNEMEN IN REQWithout this logging, it can be very hard to analyse problems that are detected only after using another application that consumes that data.