lesson4 transaction
TRANSCRIPT
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Transaction Processing System
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TransactionAn exchange involving goods or services
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Computerized system that performs and records the daily routine
transactions necessary to conduct the business; these systems
serve the operational level of the organization
Information system used to support and record transactions
TPS is the backbone of an organizations information systems.
It monitors, collects, stores, processes & disseminatesinformation for all routine core business transactions.
Transaction Processing Systems (TPS)
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Transaction Processing System Functions
Input function Capture input data
Enter input data Validate input data
Processing function: perform computation
make decision
Output function: produce screen output
print output
Storage function: stored data
Access data
Update data
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Data entry & input
ProcessingDocuments
& reports
Database
Internally generatedtransactions:
shipped orders
purchase orders
employee time cards
Externally generatedtransactions:
customer orders
vendor invoices
customer payments
Database update:
customer orders
inventory purchase orders
customers
suppliers
Documents:
pick list
cheques to vendors
receiving notices
paycheques
Operational reports:
finished productinventory status
raw materials; packingmaterials; spare parts;inventory status
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DATABASE MAINTENANCEA major activity of transaction processing systems.
An organizations database must be maintained by its
transaction processing system so that they are
always correct and up-to-date.
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1.Data collection(DataEntry
Traditional DataEntry
Source Data Entry2. Data editing
3. Data correction
4. Data manipulation
5. Data storage
The Transaction Processing Cycle
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The system then processes data in one of the following
ways:
Batch processing
the firm collects data from transactions as theyoccur, placing them in groups or batches. The
system then processes the batches periodically
Online processing
data are processed as soon as a transaction
occurs.
Hybrid system
collects data as they occur but process them at
specified intervals.
Transaction Processing Types
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Performance Continuous availability.
Data integrity
Ease of use
Modular growth
Transaction Processing System Features
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Order processing systemSupports the sales of goods or services to
customers
Purchasing system
Supports the purchase of goods and raw
materials from suppliers.
Different Transaction Processing for Different Needs
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Primary goal of TPS To provide all the information needed by law and/or
by organizational policies to keep the business
running properly and efficiently.
Objectives of TPS
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Specific objectives of a TPS
To allow for efficient & effective operation of the
organization.
To provide timely documents and reports.
To increase the competitive advantage of thecorporation.
To provide the necessary data for tactical & strategic
systems, such as Web-based applications.
To ensure accuracy & integrity of data & information. To safeguard assets & security of information.
Objectives of TPS
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To Keep records about the state of theorganization
To process transactions that affects the record.
To produce output that reports on transactions
that have occurred
The Purpose of TPS
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1. Action Documents2. Information Documents
3. Turnaround Documents
4. Control Listings
5. Edit Reports
DOCUMENT AND REPORT GENERATION
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Questions?Clarifications?