SAD- Quiz 6

25 July 2022
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A class can belong to a more general category called a ____.
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superclass
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A major advantage of O-O designs is that systems analysts can save time and avoid errors by using ____ objects.
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modular
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A sequence diagram ____.
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is a dynamic model of a use case shows the interaction among classes during a specified time period
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A use case description documents (among other things) ____.
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a description of alternative courses of action postconditions preconditions assumptions
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A use case ____ is a visual summary of several related use cases within a system or subsystem.
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diagram
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A ____ is a command that tells an object to perform a certain method.
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message
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A(n) ____ defines specific tasks that an object can perform.
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method
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A(n) ____ is a group of similar objects.
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class
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A(n) ____ is a specific member of a class.
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instance
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A(n) ____ represents a real person, place, event, or transaction.
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object
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All objects within a(n) ____ share common attributes and methods.
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class
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An object belongs to a group or category called a(n) ____.
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class
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An object has certain ____, like the make, model, and color of a car.
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attributes
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An object ____ diagram shows the objects and how they interact to perform business functions and transactions.
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relationship
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An object's ____ are the tasks or functions the object performs.
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methods
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As shown in the accompanying figure, objects within a class can be grouped into ____, which are more specific categories within a class.
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subclasses
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If ____ are similar to adjectives that describe the characteristics of an object, objects are similar to nouns.
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attributes
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In a class diagram, each class appears as a(n) ____, with the class name at the top, followed by the class's attributes and methods.
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rectangle
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In a sequence diagram, a lifeline is identified by a ____ line.
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dashed
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In a use case, an external entity is called a(n) ____.
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actor
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In an object-oriented system, objects can ____ certain attributes from other objects.
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inherit
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In structured analysis, ____ are transformed into data structures and program code.
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processes data stores entities
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Inheritance enables a ____ to derive one or more of its attributes from a parent.
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child
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Objects can have a specific attribute called a(n) ____.
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state
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The concept that a message gives different meanings to different objects is called ____.
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polymorphism
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The line from the actor to a use case is called a(n) ____.
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association
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The number of ____ needed to describe an object depends on the business requirements of the information system and its users.
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attributes
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The UML notation ____ identifies a zero or many relation.
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0..
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The UML represents an object as a(n) ____ with the object name at the top, followed by the object's attributes and methods.
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rectangle
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The UML symbol for a use case is a(n) ____ with a label that describes the action or event.
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oval
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The UML uses a set of symbols to represent graphically the ____ within a system.
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components relationships
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The ____ of an object is an adjective that describes the object's current status.
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state
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When you construct a ____, you review the use case and identify the classes that participate in the underlying business process.
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class diagram
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When you create a use case diagram, the first step is to identify the system boundary, which is represented by a ____.
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rectangle
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Which of the following is an attribute of a car?
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make model color
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Which of the following is not represented by a symbol in a sequence diagram?
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Indices
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Your car performs a(n) ____ called OPERATE WIPERS when you send a message by moving the proper control.
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method
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Your red Mustang is a(n) ____ of the CAR class.
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instance
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____ allows objects to be used as modular components anywhere in the system.
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Encapsulation
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____ are characteristics that describe the object.
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Attributes
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____ describe what objects need to know about each other, how objects respond to changes in other objects, and the effects of membership in classes, superclasses, and subclasses.
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Relationships
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____ enable objects to communicate and interact as they perform business functions and transactions required by the system.
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Relationships
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____ enables an object to derive one or more of its attributes from another object.
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Inheritance
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____ is a widely used method of visualizing and documenting an information system.
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UML
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____ resemble verbs that describe what and how an object does something.
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Methods