Exam 8: Structuring System Data Requirements
Exam 1: The Systems Development Environment155 Questions
Exam 2: The Origins of Software124 Questions
Exam 3: Managing the Information Systems Project159 Questions
Exam 4: Identifying and Selecting Systems Development Projects139 Questions
Exam 5: Initiating and Planning Systems Development Projects134 Questions
Exam 6: Determining System Requirements133 Questions
Exam 7: Structuring System Process Requirements182 Questions
Exam 8: Structuring System Data Requirements122 Questions
Exam 9: Designing Databases134 Questions
Exam 10: Designing Forms and Reports135 Questions
Exam 11: Designing Interfaces and Dialogues134 Questions
Exam 12: Designing Distributed and Internet Systems135 Questions
Exam 13: System Implementation130 Questions
Exam 14: Maintaining Information Systems136 Questions
Exam 15: Object-Oriented Analysis and Design: Use Cases38 Questions
Exam 16: Object-Oriented Analysis and Design: Activity Diagrams9 Questions
Exam 17: Object-Oriented Analysis and Design: Sequence Diagrams30 Questions
Exam 18: Business Process Modeling20 Questions
Exam 19: Objected-Oriented Analysis and Design: Object Modeling-Class Diagrams27 Questions
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Specifications that preserve the integrity of the logical data model are:
(Multiple Choice)
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A ________ is an assertion or rule that governs the validity of data manipulation operations such as insert,update,and delete.
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A detailed,logical representation of the entities,associations,and data elements for an organization or business area defines:
(Multiple Choice)
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A ________ is a simultaneous relationship among instances of three entity types.
(Short Answer)
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Conceptual data modeling for an Internet-based electronic commerce application differs significantly from the process followed when analyzing the data needs for other types of applications.
(True/False)
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A set of two or more multivalued attributes that are logically related defines:
(Multiple Choice)
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A repeating group is a set of two or more multivalued attributes that are logically related.
(True/False)
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A ________ is an attribute that may take on more than one value for each entity instance.
(Short Answer)
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A ternary relationship is a relationship between the instances of one entity type.
(True/False)
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An ellipse represents an entity on an entity-relationship diagram.
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A true data entity will have many possible instances,each with a distinguishing characteristic,as well as one or more other descriptive pieces of data.
(True/False)
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The ________ specifies that if an entity instance of the supertype is a member of one subtype,it cannot simultaneously be a member of any other subtype.
(Short Answer)
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An ________ is a detailed,logical representation of the entities,associations,and data elements for an organization or business area.
(Short Answer)
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Which of the following refers to an assertion or rule that governs the validity of data manipulation operations such as insert,update,and delete?
(Multiple Choice)
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A plural relationship is a relationship that the data modeler chooses to model as entity type.
(True/False)
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The ________ specifies that an entity instance of the supertype is allowed not to belong to any subtype.
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A candidate key that has been selected as the unique,identifying characteristic for an entity type is called a(n):
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