<H3>Special Instructions</H3> <p>This applies to DOR, DOF and DOC systems. </p> <p>This test is defined in the context of sending and receiving systems. </p> <p>The DEC_One_to_One_Communication test should be successfully completed before attempting this test. </p> <p>If the DOR and/or DOF send messages for continuous data: </p> <p>This is a multi-part test: During the test, a sending system will successfully send at least two messages for two patients, then interrupt the connection to the network, and then restore the connection and send at least two more messages for each patient. The interruption will be at least long enough to fail to transmit one message for each patient to the receiving system. The sending system will manually note the time the connection was interrupted and the time it was restored for later comparison with the transmitted and received data. The receiving system will note whether the sending system recognized that the first set of messages was not received and sent them again. </p> <p>If the DOR and/or DOF send messages ONLY for discontinuous data (e.g., a vital signs monitor): </p> <p>Sending systems that also provide continuous data do not address the following requirements for discontinuous data. </p> <p>Send data for two or more patients (a) before, (b) during, and (c) following the interruption. For these three communications, adjust at least one parameter value before sending the (b) and (c) messages (e.g., vary heart rate from 60 to 70 to 80). </p> <p>A system with a DOF may be required to perform this test more than once: </p> <p>If the DOR and/or DOF send messages for discontinuous data (e.g., a vital signs monitor): </p> <p>Send data for two or more patients (a) before, (b) during, and (c) following the interruption. For these three communications, adjust at least one parameter value before sending the (b) and (c) messages (e.g., vary heart rate from 60 to 70 to 80). </p> <p>A system with a DOF may be required to perform this test more than once: </p> <ul>  <li>Interrupted Communication between the Reporter and the Consumer or between the Reporter and a Standalone Filter</li> <p>       - DOR and DOC participate. </p> <p>       - DOR and standalone DOF participate ' this tests the input side of a standalone DOF that behaves as a DOC. </p> <li>Interrupted Communication between the Filter and the Consumer</li> <p>       - DOF and DOC implementing the SPD (PCD-02) option participate. This test is required of a DOF when the DOR and DOF are incorporated in the same system. </p> <p>       - DOF and DOC implementing the SPD (PCD-02) option participate. This test is required of a standalone DOF when the DOF is independent of a DOR. </p> </ul>  <p>NOTE: Developers of sending systems are responsible for coordinating with their partners in advance of the Connectathon to assure that the receiving systems. Parameter values should be realistic for a patient in a cardiac ICU bed or on an OR table. </p> <H3>Description</H3> <p>Conduct DEC_One_to_One_Communication before proceeding. </p> <p>The data source will send messages before, during and after each step of this test. The steps are: </p> <ul> <li>The DOC is receives messages from the DOR for two patients (see below). The messages contain at least three valid parameters for each patient. </li> <li>The DOR (or DOF on the output side) then interrupts its connection to the network, and then restores the connection. The interruption will be at least long enough to fail to transmit one message for each patient to the DOC. The sending system will manually note the time the connection was interrupted and restored for later comparison with the transmitted and received data. </li> <li>If a DOF is participating, the DOC will select a filter that provides data for at least three parameters for each of the two patients. </li> </ul>  <p>NOTE: Each DOR and each DOF needs to conduct this test only once. </p> <u>Patient Identification</u> <p>Refer to the PCD_Patient_Demographics table and select two appropriate patients. </p> <H3>Evaluation</H3> <p>Project manager or monitor will observe the displays provided by the DOR and partner DOC. The physiologic parameters and their measurement values, including the time of parameter measurement will be compared. The type of display/documentation by the DOC is not constrained, it need only be clinically useful. </p> <p>Success: Transmission and receipt of the minimum number of parameters, measurements and time of measurement sent by the sending system, matching those received by the receiving system before and after the interruption and restoration of communication, without a system failure. In particular, the systems must be able to attribute data to the correct patient during the entire test. If the sending system stores data that failed to reach the receiving system and sends it later, this should be called to the monitor's attention. </p> 