Modern Systems Analysis and Design 9th Edition By Joseph Valacich, Joey George, Jeffrey Hoffer (Test Bank)

ModernSystemsAnalysis
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andDesign f




Seventh Edition f




Jeffrey A. Hoffer Jo f f f




ey F. George Josep
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hS.Valacich
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Chapter 8 Structuring f f f




SystemData
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Requirements

,LearningObjectives f




✓ Concisely define each of the following key data mo
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deling terms: entity type, attribute, multivalued attr
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ibute, relationship, degree, cardinality, business r
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ule, associative entity, trigger, supertype, subtype
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.
✓ Draw an entity-relationship (E-
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R) diagram to represent common business situ
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ations.
✓ Explain the role of conceptual data modeling in the o
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verall analysis and design of an information system.
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,LearningObjectives(Cont.) f f




✓ Explain the role of prepackaged database m
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odels (patterns) in data modeling.
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✓ Distinguish between unary, binary, and ternary rel
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ationships and give an example of each.
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✓ Define four basic types of business rules in a con
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ceptual data model. f f




✓ Relate data modeling to process and logic mod
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eling as different views of describing an informa
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tion system.
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, ConceptualData Modeling f f




■ Conceptual data modeling: a detailed mod
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el thatcaptures theoverall structureof data in a
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n organization
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□Independent of any database management sy
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stem (DBMS) or other implementation consid
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erations




Chapterf8 ©f2014fPearsonfEducation,fInc.fPublishingfasfPrenticefHall 4