A. one of each type for the main flow and one of each type for each alternate flow of events in the use-case

B. one of each type per use-case, with each alternate flow of events shown as an interaction occurrence

C. enough of each type to ensure that all responsibilities of participating classes are identified and that most of the flows of events are examined

D. one for the main flow and one for each alternate flow of events in the use-case

A. It is created by the System Analyst.

B. It provides traceability from Analysis and Design back to requirements.

C. It lists the different steps performed by a use-case.

D. It describes the use-case in terms of collaborating objects.

A. The UML is a process-dependent language used for visualizing software artifacts.

B. The UML is a visual programming language.

C. The UML is a modeling language for software blueprints.

D. The UML is a development process for software intensive systems.

A. Packages should contain a small number of elements to avoid confusion.

B. Packages should not contain other packages.

C. Packages should only be used on large projects requiring a large number of elements.

D. Elements in a package should share a logical, common grouping.

A. the external transition only

B. both the internal and external transitions

C. neither the internal nor the external transition

D. the internal transition only