InfoWater Pro recognizes three different types of Controls. They are as follows:

Note: Rule Based Controls can override Simple Controls and Simple Controls can overrule the Initial Status for the different data elements. However, since Simple controls are evaluated repeatedly while the software is converging to a solution, it is possible for a simple control to effectively override the initial change made by a Rule based control while iterating to a solution for that specific convergence run if a simple control would specify an action in conflict with what a rule based control   initially stated to do.