Worst Case Update Threshold

The value set for this option determines which of two methods is to be used by the software to update the clash status of elements. The methods are referred to as Single Update and Global Update.

The Single Update method processes a single clash element, searching the database for the worst case and updating the clash element status accordingly. This method is efficient for single clashes, but the time taken is proportional to the number of clashes involved.

The Global Update method is routinely used at the end of every clash run to determine the worst case clash status of all elements in the database. It uses more sophisticated processing methods and is consequently faster per element than the Single Update method, but always processes all elements.

The Single Update method is used for all elements when the number of elements is below the Worst Case Update Threshold setting; the Global Update method is used when the number is above the setting.

The optimum value for Worst Case Update Threshold depends on the speed of the system and the volume of data. Refer to Performance Hints for further information.