class7 - 33:010:458 33:010:458 Accounting Information...

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Unformatted text preview: 33:010:458 33:010:458 Accounting Information Accounting Information Systems Systems r. Peter R. Gillett Dr. Peter R. Gillett Associate Professor Department of Accounting, Business Ethics and Information Systems Rutgers Business SchoolNewark and New Brunswick Accounting Information Systems A.I.S. Class 7: Outline A.I.S. Class 7: Outline Learning Objectives for Chapter 8 Entity-Relationship Models Extended Entity-Relationship Models Data Flow Diagrams Group Work for Chapter 8 (1) vent- riented Models Event Oriented Models Resource-Event-Agent Models (REA) roup Work for Chapter 8 (2) September 23, 2009 Dr. Peter R. Gillett 2 Group Work for Chapter 8 (2) September 23, 2009 Dr. Peter R. Gillett 2 Accounting Information Systems Learning Objectives for Chapter 8 Learning Objectives for Chapter 8 After studying this chapter you should be able to: * distinguish between logical and physical database models escribe the entity lationship and extended entity * describe the entity-relationship and extended entity- relationship logical modeling approaches * describe the elements of data-flow diagrams * distinguish between different levels of data-flow diagrams, such as context diagrams, Level 0, and evel 1 data flow diagrams September 23, 2009 Dr. Peter R. Gillett 3 Level 1 data flow diagrams September 23, 2009 Dr. Peter R. Gillett 3 Accounting Information Systems Learning Objectives for Chapter 8 Learning Objectives for Chapter 8 After studying this chapter you should be able to: * identify entities and relationships in a business environment using an event-oriented focus nstruct an extended entity relationship diagram * construct an extended entity relationship diagram based on a narrative description of a business scenario * construct context diagrams and data-flow diagrams based on a description of a business process September 23, 2009 Dr. Peter R. Gillett 4 September 23, 2009 Dr. Peter R. Gillett 4 Accounting Information Systems Entity Entity-Relationship Models Relationship Models Entity Relationship Entity September 23, 2009 Dr. Peter R. Gillett 5 September 23, 2009 Dr. Peter R. Gillett 5 Accounting Information Systems Extended E Extended E-R Models R Models Optionalities * optional or mandatory p y Cardinalities * :1 1:M M:1 or M:M 1:1, 1:M, M:1, or M:M Attributes * keys and non-key attributes September 23, 2009 Dr. Peter R. Gillett 6 September 23, 2009 Dr. Peter R. Gillett 6 Accounting Information Systems EER Models EER Models September 23, 2009 Dr. Peter R. Gillett 7 September 23, 2009 Dr. Peter R. Gillett 7 Accounting Information Systems Data Flow Diagrams Data Flow Diagrams DeMarco Gane & Sarson rocess Process ata source / sink Data source / sink ata flow Data flow ata store September 23, 2009 Dr. Peter R. Gillett 8 Data store September 23, 2009 Dr. Peter R. Gillett 8 Accounting Information Systems DFD Conventions DFD Conventions Processes should have unique names and be sequentially numbered (1.0, 2.0, 3.0; 2.1, 2.2, 2.3; etc.)sequentially numbered (1....
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This note was uploaded on 03/19/2010 for the course ACCT 458 taught by Professor Gillett during the Fall '09 term at Rutgers.

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class7 - 33:010:458 33:010:458 Accounting Information...

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