class9 - 33:010:458 33:010:458 Accounting Information Inf...

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33:010:458 A ntin Inf rm ti n Accounting Information Systems Dr. Peter R. Gillett Associate Professor Department of Accounting, Business Ethics and Information Systems Rutgers Business School–Newark and New Brunswick
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Accounting Information Systems A.I.S. Class 9: Outline Orville Ornaments: Questions? REA Modeling - a formal approach Extended REA Ontology Group Work Designing the Data Repository Structure for RDBMS Implementing the Design Group Projects – Flowcharting September 30, 2009 Dr. Peter R. Gillett 2
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Accounting Information Systems Orville Ornaments: Questions? September 30, 2009 Dr. Peter R. Gillett 3
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Accounting Information Systems REA Modeling REA Modeling - a Formal Approach a Formal Approach Terminology for Events: Murthy Denna David McCarthy Gillett & Groomer Economic Core Economic Economic Economic Non-economic Support Business Commitment Commitment --- Business Information Information Information Information Information September 30, 2009 Dr. Peter R. Gillett 4
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Accounting Information Systems REA Modeling REA Modeling - a Formal Approach a Formal Approach Economic events increase or decrease economic resources Resources are scarce, have utility and are under the control of an enterprise Agents are those who participate in events September 30, 2009 Dr. Peter R. Gillett 5
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Accounting Information Systems REA Modeling REA Modeling - a Formal Approach a Formal Approach Economic exchanges are pairs of related events Duality relationship * In an economic exchange one resource is In an economic exchange, one resource is incremented while another is decremented * The dual events need not be simultaneous The dual events need not be simultaneous nor need one be a precursor to the other September 30, 2009 Dr. Peter R. Gillett 6
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Accounting Information Systems REA Modeling REA Modeling - a Formal Approach a Formal Approach Synergy relationships * Multiple events that occur in conjunction with each other and result in the whole being greater than the sum of the parts September 30, 2009 Dr. Peter R. Gillett 7
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Accounting Information Systems REA Modeling REA Modeling - a Formal Approach a Formal Approach Identify each economic exchange Model each exchange using REA Perform view integration to consolidate exchange diagrams V if th t th t t i t Verify that there are events to increment and decrement each resource Verify that every event participates in a Verify that every event participates in a duality relationship Integrate supporting business events September 30, 2009 Dr. Peter R. Gillett 8
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Accounting Information Systems REA Modeling REA Modeling - a Formal Approach a Formal Approach A more radical view of events is taken here: * only needed events should be added * they should be modeled in accordance with they should be modeled in accordance with business realities rather than traditional accounting conventions * this view facilitates business process reengineering September 30, 2009 Dr. Peter R. Gillett 9
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Accounting Information Systems REA Modeling REA Modeling - a Formal Approach a Formal Approach Information processes are not recorded
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