When selecting attributes, already with four process technique data might be missing values should make adjustments to the data. Fill up the missing information so that it can be used in an analysis by the program.
When finished with the selected attributes of the 4 techniques may be missing. Should be updated Enter the missing data to be applied to the analysis of the program.
When selected attributes successfully with the 4 techniques. The data may be the missing. Should the update data. Fill in the missing information, so can be used in the analysis of the program!