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24 Cards in this Set
- Front
- Back
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Transaction Processing System: An information system that ___________ and ____________ business transaction data in supporting a business organization's day-to-day operations.
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Capture, Process
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The 13 Major Characteristics of a TPS (Turban, Rainer, and Potter)
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1. Processes typically large amounts of data (Only true for Batch Processing)
2. Processes internal data mostly 3. Generates outputs mainly for an internal audience 4. Processes information on a regular basis 5. Requires large storage database capacity 6. High processing speed is needed due to the high volume 7. Monitors and collects past data 8. Formats input and output data in a structured fashion 9. Accepts input data at a high level of detail 10. Performs tasks of low computation complexity 11. Requires a high level of accuracy, data integrity, and security 12. Requires a high degree of reliability 13. Enables users to query files and databases |
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Basic activities of a Transaction Processing Cycle
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1. Data Entry 2. Transaction processing 3. File and Database maintenance 4. Document and Report Generation 5. Inquiry Processing
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Source data automation (A part of Automated Data Entry) Has 3 parts...
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Currency: Capturing data as early as possible after a transaction occurs
Timeliness: Capturing data as close as possible to the source that generates the data Form: Capturing Data using machine-readable media initially |
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Is Electronic Data interchange (EDI) a highly secure form of computer to computer communication?
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Yes, it is highly secure
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The interfacing Technique of EDI...
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Structured STANDARD formats
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The Six documents transmitted electronically include...
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1. Invoices 2. Purchase orders (POs) 3. Requests for quotations (RFQs) 4. Bills of Lading (BOL) 5. Receiving reports 6. shipping notifications
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EDI key elements in reducing paper flows and streamlining information interchange
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EDI Network, EDI translator computer
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Direct Connection EDI
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Point to point connection (Using Modems)
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Trading partners using different communications protocols
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Can make both direct connection options
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Indirect Connection EDI
Value Added Network (VAN) |
Connect to a 3rd parties system. Must have EDI Translator Software installed by the company
VAN: provides communications equipment and skills |
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An efficient EDI System...
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Requires that the data be input only once, and the system manages the rest
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Key Implementation Issues with EDI
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1. EDI interchange standards 2. Translation software 3. EDI VAN service 4. Data transport Standards
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EDI Layered Architecture (4 Layers)
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1. Semantic Layer 2. Standards Translation 3. Transport Layer 4. Physical Network Infrastructure Layer
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Batch Processing
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Accumulating Transaction Data over a PERIOD of TIME and processing the PERIODICALLY
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Advantages of Batch Processing
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Economical: Data quantity = economies of scale
Reporting time period |
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Disadvantages of Batch Processing
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Out of Date Databases
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Can Batch Processing Provide immediate response?
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Yes, but NO immediate UPDATED information
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Realtime Processing (online processing, online transaction processing, online realtime processing--best one)
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Processes data IMMEDIATELY after collection to provide immediate, up to date output.
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Characteristics of Realtime Processing
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On-line Terminals
Direct Access files |
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Advantages of Realtime Processing
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Up to date information
Suitable for Dynamic environments |
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Disadvantages of Realtime Processing
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Security
In a distributed process concurrency |
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Transaction Documents (4th Stage in the TPS cycle)
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Action Documents: Initiating activities on the part of the receipt
Information Documents: Confirming to the recipient a transaction has occurred Turnaround Documents: Combining the above 2 |
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Transaction Reports (4th Stage in the TPS Cycle)
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Control Listings
Edit Reports Accounting Statements |
