redefinition

Inherited items will hidden by redefinition. The hidden attributes/methods still exist and can be accessed by a qualified notation.

resolution function

In order to treat concurrent assignments on one signal, the signal can be bound to a resolution type which for his part is bound to a resolution function. The resolution function gets the different assignments and according to a certain algorithm it decides the final result of the assignment. In case of assignments on a signal which is bound to a resolution type, the corresponding resolution function is automatically called.