Answer to Question 1
An important issue in architectural modeling is view management: how to keep the models that result from the selection of what, who, where, and when connected and in sync. UML offers two stereotyped relationships for view management: trace that indicates historical dependency between models and refine that shows a model as a less abstract version of another one. These two mechanisms, however, only address the when and the what of the architectural view. UML does not effectively address the who and the where.
Answer to Question 2
TRUE