Stores can be updated while a circuit is enabled. However, care needs to be exercised since:

• Some circuit parameters (Static parameters) are only read at circuit load time. Updating these values without reloading the circuit will have no effect on the circuit's correlation.

• A correlation being performed by a circuit may make more than one reference to the Stores. Updating Stores while correlation is in progress may result in part of the correlation using old Store values, and the rest of the correlation using new values.

• The above problem may be even worse if there are logical dependencies between the Data and Fact Stores, and one Store is updated before the other Store.

To alleviate the second two problems, you may want to consider using Data and Fact Store versioning when designing correlation circuits. See the HP OpenView ECS Designer's Reference for further details.