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Computer-Based Accounting Information Systems Design

Computer-Based Accounting Information Systems Design. ACC 419/619 Joe Callaghan. Oakland University Accounting & Finance Department. Introduction/Overview. Review Tentative Course Syllabus Prerequisites Instructor Info Ways to Communicate Course Resources Grading

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Computer-Based Accounting Information Systems Design

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  1. Computer-Based Accounting Information Systems Design ACC 419/619 Joe Callaghan Oakland University Accounting & Finance Department

  2. Introduction/Overview • Review Tentative Course Syllabus • Prerequisites • Instructor Info • Ways to Communicate • Course Resources • Grading • Other Handouts/Readings • Questions?

  3. Technical Issues • Oracle Designer/Developer • RDBMS: Oracle 8i, ODBC • Code: PL/SQL, Java • Student Models • E-mail, Web-page, etc. • Oracle accounts • Production server • Development server

  4. Modeling Business 1 (IPSO) • Overview of Business Enterprise $ $ Suppliers Enterprise Customers Resources/ Factors Products/ Services Convert/ Value-Add

  5. Modeling Business 2 • Outline the Various Cycles Cash Disburse Cash Receipts $ $ Suppliers Enterprise Customers Materials (I/C) Labor (Payroll) Overhead O/E & Sales Job Cost I/C

  6. Systems Development Life-Cycle • Top-Down, Divide and Conquer • Other Methods • Bottom-Up (Reverse Engineering) • Rapid Application Development • Object-Oriented Systems • ERP (Enterprise Resource Packages)

  7. Information Engineering Stages(James Martin) Information Strategy Planning Analysis Design Construction

  8. Curricular Strategy:Model-Oriented Tool-Enhanced (MOTE) • Using IE and MOTE • rigorous, yet flexible framework • structured logic, but no specific language • relational, but not vendor-specific • support for varied environments, e.g.. Block Mode, GUI, Batch, and Client-Server

  9. Information Engineering Stages(Sterling Software™) ISP Bus. Area Analysis Bus. Sys. Design Technical Design Construc- tion Transition Production

  10. Analysis and Design Tool Outputs ERD, AHD, ADD, PAD Analysis Oracle Models Design Generated Code, DDL (PL/SQL Java) Construction

  11. Oracle Designer: Main

  12. Gen to Designer

  13. Purposes of InformationStrategy Planning (ISP) • To link IT Planning to Strategic Business Planning • To create an architectural framework that individual systems can fit into • To set priorities for Business Area Analysis

  14. Analysis Tasks Data Analysis Interaction Analysis Analysis Model Confirmation Design Planning Activity Analysis Current System Analysis

  15. Data & Activity Analysis • Done in parallel • Developed iteratively • Ask User • Document • Feedback • Refine • Deliverables - Entity Relationship Diagram, Function Hierarchy Diagram, Process Models

  16. Interaction Analysis • Examines the relationships and interactions between data and processes • Three techniques • REA analysis • Entity type life cycle analysis • Process logic analysis

  17. Current Systems Analysis • Provides validation of understanding • Planning for transition • Preparation for conversion • Identification of reusable components

  18. Model Confirmation • Checks business area model for correctness and completeness • Comparison with current systems • Stability analysis

  19. Overview of Design

  20. Introduction • Analysis precedes it and is prerequisite to it • Construction and Implementation is next stage • Consists of two parts • External • Internal or Technical

  21. Prerequisites to Design • Analysis Deliverables: • Data Model: ERD • Activity Model: AHD, ADD • Interaction model: REA • Use Belgium Chocolate • Website link • See models and Access database

  22. Design • External • Goal: develop system as it appears to users • Who are the users? • What are the locations? • What are the technical possibilities? • Internal (Technical) • transform logical data model into a physical representation of the database • transform activity models into executable system

  23. Tasks • Choose Application Style • GUI • Client Server • Terminal based • Batch, perhaps using legacy systems • Designing the Dialog • Data Flow Diagrams • Design the Interface • Windows, Dialog boxes, controls • Design the Procedure Logic (PrAD) • Triggers, Procedures and Reports • Design the Data Structure

  24. Design Deliverables • Interface Layouts, using views and Interface Design Tool (Forms Developer) • A Set of Procedural Logic • Report requirements (Reports Developer) • Data Structure List

  25. GUIs • Create Window • Specify Window characteristics • Exercise to re-enforce learning • Add menu items to a window • Specify menu items • Create Controls • Add controls that implement views • Add other controls, e.g. OK, Cancel • Map Import/Export Views • Add Events, invocation of PrAD logic

  26. Client/Server • Presentation logic, Data manipulation logic, Data Management • Remote Presentation (Presentation management only on Client, all logic on Server) • Distributed Process (Presentation Logic on Client, others on Server) • Remote Data Access (Only Data management on Server)

  27. Next Session • Review Oracle Tutorial • Incorporation of REAL Modeling • Review Belgium Chocolate • Show Analysis Examples

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