If an item possesses a state, then it should probably be modelled as a(n) __________.
A. state variable
B. instance variable
C. class
D. method
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A strength of using CASE tools is that ___________.
A. a change in the underlying model is reflected in all of the diagrams.
B. they are easy for inexperienced analysts to use.
C. users are more likely to understand the output than they do written requirements.
D. the models constructed are necessary and sufficient to create a contract.
A ________ class models complex computations and algorithms.
A. Entity Class
Boundary Class
Control Class
D. Abstract class
An ________ classmodels information that is long lived.
A. entity
B. boundary class
C. control class
D. abstract class
A entity class models the interaction between the software product and its actors.
A. 对
B. 错
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