• INFORMATION SYSTEMS

Information Systems

Represented By

M.Yameen Shakir Email: Yami.Shakir786@gmail.com

University of Education Okara campus Renala Khurd

Outline Information

systems Components of IS Types of IS TPS Definition of TPS Function of TPS Types of TPS Features of TPS

Properties of TPS

Example of TPS

Storing & Retrieving data

What is Information Systems ?In these days, Information systems used in every field of life

For example: Education, Manufacturing, Researches, Games, Entertainment, Business and etc.

So it is define as :

An Information System is a combination of software, hardware, and telecommunication systems which can support business operation to increase productivity and the help managers make decision. 0R

Information system: system consisting of the network of all communication channels used within an organizati

Many companies today use IS as a basis productivity, producing quality products, providing quality services , creating customer confidence and making timely decision.

Components of IS

Information System contains 5 components

Data

Process

Information

Information System

Software

Hardware

Types of Information system

Information systems

DSS

EIS

MIS

TPS

OSS

PCSOIS

Expert system

Transaction Processing System A transaction processing system (TPS) is an

information system that captures and processes data generated during an organization’s day-to-day transactions.  A transaction is a business activity such as a deposit, payment, order or reservation.

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Transaction Processing Systems (TPS) System that performs or records daily routine transactions .

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Transaction Processing Systems (TPS) System that collects, stores, modifies, and retrieves the data transaction of an enterprise.

Examples of TPS

There are different examples of Transaction Processing Systems (TPS)

Paying by cheque

Credit &Debit card

E-Commerc

e

MICR

Barcode Reader

Payroll

Sales order Entry

ATM

Function of TPS

PROCESS function

OUTPUT function

USER

INPUT function

Types of TPS

Transaction Processing System

Real-Time ProcessingBatch

Processing

Batch Processing

Batch processing transaction is the processing as collects the data/ store at a time of the event with actual updating of the database later when it is schedule or there is enough data.

An example may be accounts which are make to be easily stored & update due to amount and type of data. Example of this maybe telephone

Real-Time Processing

Real time Processing is the processing as real time transaction processing as immediate processing of data with the database update as the transaction is being carried out.

An example maybe ATM or POS terminal.

Both have user input which require feedback.

Batch processing vs Real time processing

Batch processing Real time processing

transaction data are accumulated

processed periodically used to be necessary

because of synchronization problems

Example is paying by cheque

also called online immediately processed Syncronization issues What if two people order

the same product at the same extact time, but there is only one product left

Example of real time processing is ATM

Feature of transaction processing system

Rapid response:

Fast performance with rapid result. Reliability:

Well designed backup and recovery with a low failure rate.

Inflexibility:

Treat every transaction equally. It maybe used many time each day which means it ha to be precise and inflexible

Controlled Processing:

Maintain specific requirement for the roles and the responsibility of different employees.

Qualifiers for TPS

In order to qualify as a TPS transaction made by system must pass by the ACID test

Atomicity Consistency Isolation Durability

STAGES OF TRANSACTION PROCESSING

Five Stages Of Transaction Processing Data Entry Processing Database Maintenance Document And Report Generation Inquiry Processing

Processing cycle

Data Entry Transaction Processing

Collecting and capturing transactions

No longer manual: Old technologies Bar

Codes, Magnetic Strips (credit cards)

New technologies RFID, Smart Cards,

Synchronization Issues: Which transaction to

process next.

Breaking ties

Dependencies○ Can’t schedule delivery

before credit approval.

Processing Cycle

Database Maintenance Document/Report Generation

TPS helps ensure the databases are up-to-date and correct.

Multiple databases A single purchase

decreases quantity – Inventory Database

decrease credit – Credit Card Database

sales – Sales Database

Document/Report Generation

Examples purchase orders pay checks sales receipts invoices bank statements

An MIS also generates reports, but TPS reports are operational (no analysis).

Inquiry Processing

Examples when was a purchase made does a customer have any credits on their

account was an item scheduled for delivery was a package signed for

An MIS also allows for inquiries, but the information available is summarized (or aggregated), i.e., What are the total sales for a whole department? What is the best selling product?

Processing Cycle

Summery Every organisation needs to be aware and conscious of development, especially in the fields of computing and information technology, to ensure that they would not be left behind and fail in the competition to move forward. • To compete in business, the management needs to provide the necessary infrastructure so that the information technology environment can be developed. This includes the provision of the information system components. • To realise information systems in business, an information system expert needs to model a business process, i.e. to determine what are the business activities for an organisation, and what are the processes involved in the implementation activity. With this kind of specification, a new information system can be developed. • Information systems play a very important role in the management aspect of an organisation. By looking at the functions and the scope of its use, an information system can be divided into two main support systems, i.e. Operation Support System and Management Support System.

Peace, Love and Serve

Thank you