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    An accounting information system

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    Please provide an explanation and one example for each of the following questions:

    1. In what way does the AIS support decision-making?

    2. How do experty systems improve the use of knowledge?

    3. How does a modem work?

    4. What are the disadvantages of prototyping relative to the waterfall approach to systems development?

    5. What are system flowcharts and how are they used by accountants and auditors?

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    Solution Preview

    1. An accounting information system consists of the personnel, procedures, devices, and records used by an organization to develop accounting information and communicate that information to decision makers.
    The primary purpose or objective of an accounting system is to meet the organization's needs for
    accounting information as efficiently as possible.
    The three basic functions of an accounting system, and how it supports decision makers, are:
    ?Interpret and record business transactions
    ?Classify the effect of similar transactions in a manner that permits determination of various
    totals and subtotals useful to management and used in accounting reports
    ?Summarize and communicate the information contained in the system directly to decision makers so that they may make an informed decision as efficiently as possible.

    2. Definitions of expert systems vary. Some definitions are based on function. Some definitions are based on structure. Some definitions have both functional and structural components. Many early definitions assume rule-based reasoning.
    An Expert (Knowledge Based) System is a problem solving and decision making system based on
    knowledge of it's task and logical rules or procedures for using knowledge. Both the knowledge and the logic is obtained from the experience of a specialist in the area (Business Expert).
    An Expert System is a program that emulates the interaction a user might have with a human expert to solve a problem. The end user provides input by selecting one or more answers from a list or by entering data. The program will ask questions until it has reached a conclusion. The conclusion may be the selection of a single solution or list of possible solutions arranged in order of likelihood. The program can explain, in English, how it arrived at its conclusion and why.
    Many companies use expert systems to assist with credit analysis. The benefits of using expert systems for credit analysis are speed and accuracy, both which far exceed human capacity. American Express uses expert systems to process unusual requests. The system, called Authorizer's Assistant, can process requests much quicker than the customer service representatives manually, and has decreased the bad guess rate. The rate was originally 15 percent error, ...

    Solution Summary

    An accounting information system is dissected.