4. The method of claim 2 , further comprising: determining when an entry on the browser tree is selected; and determining whether the entry selected is a circuit design constraint group or a circuit design constraint.
4. The method of claim 2 , further comprising: determining when an entry on the browser tree is selected; and determining whether the entry selected is a circuit design constraint group or a circuit design constraint. 5. The method of claim 4 , for a selection that is a circuit design constraint, performing the operations of: (a) querying a design object store for the circuit design constraint selected, (b) receiving a data from the registry store relating to the circuit design constraint selected, wherein the data comprises the circuit design constraint's attributes, (c) invoking a graphical user interface widget for the circuit design constraint, and (d) passing the graphical user interface widget the data retrieved from the design object store.