Use Case Maps and UML for Complex Software-Driven Systems (unpublished) D. Amyot Abstract This paper presents interesting features of UCMs in relation with several types of diagrams defined in UML. It also shows how UCMs can bind scenarios and structures at the architectural level, how they help visualizing dynamic systems, how they enable architectural reasoning, and how they help bridging the c onceptual gap between use cases and sequence, activity, and statechart diagrams. NB: Draft document. Please, do not cite. Comments are welcomed.