Jan 05, 2016
TPS• TPS is a type of information system that collects,
stores, modifies and retrieves the data transactions of an enterprise.
• A transaction is an event that generates or modifies data that is eventually stored on an information system.
• TPSs are aimed at improving the routine business activities on which all organizations depend.
• Transaction processing, the set of procedures for handling the transactions, often includes the activities like calculation, storage and retrieval, classification, summarization, sorting.
CHARACTERSTICS OF TPS
• Rapid Response
• Reliability
• Inflexibility
• Data life -line
CHARACTERISTICS OF TPS..
• Controlled access
• Link between organization & external entities
• Standardization
• Routine-natured
TRANSACTIONS PROCESSING QUALIFIERS
• In order to qualify as a TPS, transactions made by the system must pass the ACID test.
1. Atomicity
2. Consistency
3. Isolation
4. Durability
TRANSACTION PROCESSING CYCLE
• Transaction processing systems generally go through a five-stage cycle of
1) Data entry activities
2) Transaction processing activities
3) File and database processing
4) Document and report generation
5) Inquiry processing activities.
TYPES OF TRANSACTION PROCESSING SYSTEMS
• Batch Transaction Processing
• Examples:-
1.Cheque Clearance
2.Bill Generation
3.Credit Card Transactions
REAL-TIME TRANSACTION PROCESSING
• Main disadvantage of RTTP is the hardware and software costs exceed batch.
• Two main concerns:-1.Concurrency2.Atomicity• Examples of RTTP :-1.Reservation Systems2.Pos Terminals3.Library Loan System
CASE STUDY