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16 Cards in this Set
- Front
- Back
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Information System
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Set of formal procedures by which data are collected, processed into information, and distributed to users
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AIS identifies, collects, processes, and communicates information about ........ ...... of a firm using a wide variety of technologies
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economic events
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The entire process of AIS follows a set of .......... .....
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systematic rules
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AIS distributes transaction information to a large number of ........ and ........ .....
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Internal and external users
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The four parts of the AIS are:
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1. Data Collection
2. Data Processing 3. Database mgmt (not in manual) 4. Information Generation *See diagram |
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Useful Information has the following 5 Characteristics:
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1. Relevance: serves a purpose
2. Timeliness: no older than the time period of the action it supports 3. Accuracy: free from material errors 4. Completeness: all information essential to a decision or task is present 5. Summarization: aggregated in accordance with the user's needs (Run, Then All Contestants Swim) |
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Three types of decisions made based on accounting information:
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1. The stewardship function of management
2. Management decision making 3. Day-to-day operations (Financial, Managerial, Day-to-day) |
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Database is an information system's ........ .......... for data.
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physical repository
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Database management tasks typically include:
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Data storage, data retrieval, and data deletion.
(Store, Retrieve, Delete) |
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Three main types of information systems:
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1. Manual Systems
2. Flat-file Systems 3. Database Systems (See Diagrams in Notes) |
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DBMS
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Database Management System
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Centralized Data Processing Model
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-Usually use ERP
-All data processing is performed by one or more large computers housed at a central site that serve users throughout the organization |
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Distributed IT Functions
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-Usually flat file or manual
-Involves reorganizing the IT function into small information processing units that are distributed to end users and placed under their control |
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Advantages of Distributed IT Functions
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1. Lower Hardware Requirement
2. Improved Cost Control Responsibility 3. Improved user satisfaction since control is closer to the user level 4. Backup of data can be improved through the use of multiple data storage sites |
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Disadvantages of Distributed IT functions
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1. Loss of controls at the top (security issues)
2. Hardware and software incompatibility 3. Redundant tasks and data 4. Difficulty attracting qualified personnel |
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Roles of accountants in an information system
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-Information system users
-System Designers -System Auditors (Use, Make, Audit) |
