Constraint types
On the Constraints Diagram the constraint type allows you to organize constraints and constraint types into sets of related items. Two associated constraint types will have a parent-child relationship, with an arrow pointing from parent to child on the diagram.
Select the 
icon on the Constraints Diagram tab to add a
constraint type to your diagram or you can drag and drop a constraint type from the dictionary.
icon on the Constraints Diagram tab to add a
constraint type to your diagram or you can drag and drop a constraint type from the dictionary.When you have added a constraint type, you can change it both via the diagram using the constraint type Property pages or the context menu. You can describe the criteria of the constraint type in the Text tab of the constraint type Property pages.