Chapter 5
14. Activity diagrams are not helpful in developing system sequence diagrams (SSDs
False
On an activity diagram, the diamond represents an "AND" condition
False
One of the disadvantages of UML and object-oriented models is the difficulty of synchronizing the models
False
In an activity diagram, a separate use case may used as part of the workflow
True
In an interaction diagram, messages are sent and received by individual objects, not by classes
True
In the object-oriented approach to systems development, the flow of information is achieved by sending messages either to and from actors or back and forth between
True
In using the CRUD technique, new use cases and new stakeholders may be identified
True
A good way to describe a use case scenario is with a state chart
False
A true/false condition on a message indicates the condition of the return value of the message, i.e. whether the message was successful or not
False
A true/false condition on a sequence diagram indicates whether the message can be processed or not
False
Activity diagrams are not helpful when the flow of activities is too complex
False
Activity diagrams cannot be used to describe processes that involve automated system activities
False
An Opt frame and an Alt frame do essentially the same thing
False
In a system sequence diagram a box refers to a class of objects
False
In a system sequence diagram the order of the messages is determined by numbering the messages
False
Information for Use Case Descriptions is primarily derived from System Sequence Diagrams
False
Since an activity diagram is not object-oriented (e.g. no objects), it is not a standard model of the object-oriented Unified Modeling Language (UML
False
The best use of the CRUD technique is used to generate new use cases
False
Two difference scenarios of a use case would normally be described in a single fully developed use case description.
False
A loop frame and an asterisk mean the same thing in a sequence diagram
True
An Opt frame and a true/false condition on a message serve essentially the same purpose
True
An activity diagram and the flow of activities in a fully developed use case description serve the same purpose
True
An actor is always outside of the automation boundary
True
An oval indicates an embedded use case inside of an activity diagram
True
In a sequence diagram, a message is considered to be an action that is invoked on the destination object
True
On a sequence diagram, a message represents a service request
True
Synchronization bars are used to indicate looping in an activity diagram
True
The CRUD technique can be used to identify new use cases as well as delete unnecessary use cases
True
