ais_cybertext_chap8_notes

ais_cybertext_chap8_notes - Accounting Information Systems...

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Accounting Information Systems Introduction to AIS: Chapter 8: Logical Design for Database Systems LEARNING OBJECTIVES This chapter focuses on logical design for the development of database systems and has two main objectives: (1) describe two commonly used logical modeling tools for systems design -- Entity-Relationship (ER) modeling and data-flow diagrams (DFD), and (2) provide specific guidelines using an "event-oriented" approach to facilitate the construction of ER models and DFDs for business/accounting scenarios. distinguish between logical (chapter 8) and physical (chapter 9) database models The systems design stage involves logical and physical design -- developing data and process models for the proposed system, from which physical models suitable for implementation are created. describe the entity-relationship and extended entity-relationship logical modeling approaches ER : Model the entities and relationships between them EER
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ais_cybertext_chap8_notes - Accounting Information Systems...

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