of frequencies. The impact of EMF can generate wrong results of medical devices, the deterioration of the hardware components of another MD, and also can cause cancer for clinicians that are exposed for long periods to EMF.

### Data accuracy. {#sec:accuracy}

The final goal of a medical device is to monitor patient safety, inject drugs into patient body in some cases, intervenes in surgical operations, and provide data that is accurate for ulterior use by clinicians and staticians. The big flow of data in healthcare applications generates a need to have well-defined description of rich and structured data required to represent the variety of data used in clinical environment [@weiningerintegrated] and thereby data that is *correct*. To have accurate data the clinician responsible of the good use of the device must insure the good installation of electrodes and cables on the patient body, the appropriate environmental conditions to the MD and the absence of interoperability issues. \[sec:Vulnerabilities\]

Interoperability alternatives {#sec:standards}
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HIMSS (Healthcare Information and Management Systems Society) [@himms] defines *interoperability* in healthcare at three levels:

-   Data exchange between two different information technology system. This includes the ability to exchange the data, to receive it and to interpret the 