he basic input-process-output graph pattern is again the same as for recipes and planning. More info at <a href="../../concepts/flows/">Flows concepts</a>.</p>
<p><img alt="observation model" src="../../assets/observation-mdl.png" /></p>
<h4 id="vfprocess_1">vf:Process</h4>
<p>See the operational Process defined in the Planning subject area.  Operational Processes are carried down to the Observation layer as they are executed, or can be directly defined for Observation if planning is not done.</p>
<h4 id="v