A constraint that requires that two observations occur simultaneously. So need a feature in addition to (ie separate from) timing windows on the Observation form to select the required observation(s). Don't know if we need to limit this to two simultaneous or unlimited number?
A constraint that requires that two observations occur simultaneously. So need a feature in addition to (ie separate from) timing windows on the Observation form to select the required observation(s). Don't know if we need to limit this to two simultaneous or unlimited number?