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Defining the ObservationResult Table |
The last table you need to define maps to the OBX (Observation Result) segment.
- Return to the Message Browser and expand the OBX segment. The required fields have orange flags.
Generating The OBX Segment
For the tutorial application, the following fields will be generated for the OBX segment:
| Field Number | Field Name | Description |
|---|---|---|
| 1 | Sequence Number | This gives the position of the current OBX segment in the sequence of OBX segments. For each new message, this value starts from 1 and is incremented for each new OBX segment. |
| 2 | Value Type | This is the type of the value stored in Field 5. Set this value to 'TX' (Text). |
| 3 | Observation Identifier | The observation identifier for this result. This field is mandatory. |
| 5 | Observation Value | The result of the observation. This is the main content of this segment. |
| 11 | Observation Result Status | This field is mandatory. In this tutorial, it will always be set to 'F' (Final result). |
The next task is to create and define the ObservationResult Table, using the same method as before:
- Create a new table by clicking the Table icon in the toolbar. The new table, Table0, appears in the Workspace under Tables.
- Right-click the new table and select Rename Table.
- Change the name of the table to ObservationResult.
- Double-click the ObservationResult table in the Workspace. The ObservationResult Table window is displayed.
The ObservationResult Table Window
- In the Description field, type Laboratory Findings. (This description is optional.)
- In the empty field in the Column Name column, type SequenceNumber. Notice that when you start typing, a new row appears.
- In subsequent rows, in the Column Name column, type ObservationID, ObservationResultStatus, ObservationType and Observation.
- In the Data Type column, select the String data type for all items except Observation, which is of type Double.
- In the Outbound Script column of the ObservationResultStatus row, click the ... (ellipsis) button. The Editing Script window appears.
- In this window, type the following Python script:
value = 'F' |
- Click Ok to close the Editing Script window.
- In the Outbound Script column of the ObservationType row, click the ... (ellipsis) button. The Editing Script window appears.
- In this window, type the following Python script:
value = 'TX' |
- Click Ok to close the Editing Script window.
Your table should look like this when you are finished:
Fields For Each OBX Segment
You have now finished defining the tables that store the data that you will include in your generated messages. The next step is to add the tables to the message's table grammar.