Test bank and solution manual of essential of database management hoffer (2)
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Test bank and solution manual of essential of database management hoffer (2)
Test bank and solution manual of essential of database management hoffer (2)
Chapter 217Chapter 2 Modeling Data in the OrganizationChapter OverviewThe purpose of this chapter is to present a detailed description of the entity-r Test bank and solution manual of essential of database management hoffer (2)relationship model and the use of this tool within the context of conceptual data modeling. This chapter presents the basic entity-relationship (or E-R) model. Advanced features of conceptual data modeling will follow in Chapter 3.Chapter ObjectivesSpecific student learning objectives are included i Test bank and solution manual of essential of database management hoffer (2)n the beginning of the chapter. From an instructor’s point of view, the objectives of this chapter are to:1Emphasize the importance of understanding oTest bank and solution manual of essential of database management hoffer (2)
rganizational data, and convince your students that unless they can represent data unambiguously at the conceptual level, they cannot implement a dataChapter 217Chapter 2 Modeling Data in the OrganizationChapter OverviewThe purpose of this chapter is to present a detailed description of the entity-r Test bank and solution manual of essential of database management hoffer (2)sed to capture the structure and much, although not all. of the semantics (or meaning) of data.3Apply E-R modeling concepts to several practical examples including the Pine Valley Furniture Company case.Key TermsAssociative entityEntity typeOptional attributeAttributeEntity-relationship diagramRelat Test bank and solution manual of essential of database management hoffer (2)ionship instanceBinary relationship(E-R diagram)Relationship typeBusiness ruleEntity-relationship modelRequired attributeCardinality constraint(E-R moTest bank and solution manual of essential of database management hoffer (2)
del)Simple (or atomic) attributeComposite attributeIdentifierStrong entity typeComposite identifierIdentifying ownerTernary relationshipDegreeIdentifyChapter 217Chapter 2 Modeling Data in the OrganizationChapter OverviewThe purpose of this chapter is to present a detailed description of the entity-r Test bank and solution manual of essential of database management hoffer (2)ttributeClassroom Ideas1Review the major steps in the database development process (Figures 1-7 and 1-8) and highlight the importance of data modeling in determining the overall data requirements of information systems. Lead a discussion regarding the parties within an organization that typically ar Test bank and solution manual of essential of database management hoffer (2)e most heavily involved in each of the steps and how end users may best participate in the process.2Introduce the concept of drawing models to represeTest bank and solution manual of essential of database management hoffer (2)
nt information in a concise maimer by having your students participate in a small active exercise in map-making. Divide theCopyiislu c 2014 Pcuiwti EdChapter 217Chapter 2 Modeling Data in the OrganizationChapter OverviewThe purpose of this chapter is to present a detailed description of the entity-rChapter 217Chapter 2 Modeling Data in the OrganizationChapter OverviewThe purpose of this chapter is to present a detailed description of the entity-rGọi ngay
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