Week 3 Notes
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This 2 page Class Notes was uploaded by Marc Giangregorio on Thursday January 28, 2016. The Class Notes belongs to Acct 304 at Xavier University taught by Dr. Cockrell in Spring 2016. Since its upload, it has received 53 views. For similar materials see Accounting Info Systems in Accounting at Xavier University.
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Date Created: 01/28/16
Chapter 3: Systems Documentation Techniques Data Flow Diagrams (DFD) Graphical description of the flow of data within an organization, includes data sources, destinations, data flows, transformation, processes, and data stores. Symbols are used to represent the different elements (pg. 50) Vocab associated with DFD Data Source entity that produces data that is entered into the system (represented by square box) Data Destination Entity that receives data produced by system (also represented by square box) Data Flow Movement of data among processes, stores, sources, and destinations (rep by arrow) Process action that transforms data into info (represented by circle/bubbles) Data Store place where system data is stored (represented by two horizontal lines) Context Diagram Highest level DFD (summary view of the system) shows the data processing system, its inputs, and outputs, their sources, and destinations Flowcharts Uses standard set of symbols (pg. 56) to describe pictorially some aspect of an information system in a clear, concise, and logical manner. They analyze how to improve business processes and document flows Symbols are divided into 4 categories 1. Input/output shows input/output from a system (document, multiple copies, electronic output, electronic data entry, electronic input and output device 2. Processing either manual or computer processed 3. Storage symbols shows where data is stored (database, magnetic tape, paper/document file, and journal/ledger) 4. Flow and Miscellaneous symbols show flow of data (document/processing flow, communication link, onpage connector, offpage connector, terminal, decision annotation) Types of Flowcharts 1. Document shows flow of documents and data for a process (for evaluating internal controls) 2. System shows relationship among system, input, processing, storage, and output (the data processing cycle) 3. Program shoes sequence of logical operations performed by a computer in a program Business Process Diagram visual way to represent the various activities in a business process (for example there are many steps in the revenue cycle) It is used so that all business users can easily understand the process from a standard notation (Business Process Modeling Notation BPMN) Specific symbols and names for the symbols are on page 63 The Business Process Diagram distinguishes the department or location of the activity unlike the data flow diagrams and system flowcharts. The rows (such as Payroll, Accounts Payable, and Human Resources) are called swim lanes
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