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Data Processi ng Informati on The basic information system model Data Processi ng Informati on Data Storage The basic model with data storage Figure:-6.1:- Basic information Systems Model

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Page 1: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Data Processing Information

The basic information system model

Data Processing Information

Data Storage

The basic model with data storage

Figure:-6.1:- Basic information Systems Model

Page 2: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Application subsystems

Order entry and billing

Payroll and personal

Marketing management

Inventory accounting and management

Application subsystem makes use of functional subsystems

Dat

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Figure:6.2:- Basic Information Systems Model

Page 3: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Files

Transaction processing

Operational control reports

(b) Control reportsTransaction output

Transactions

Files

Transaction processing

(a) Transaction

Inquiry response

Operational report

processingInquiry

Files

(c) Inquiry Processing

Figure:6.3:- Processing to support operational control.

Page 4: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Processing Programs

Data base

Inquiry

Processing

Decision models

Problem analysis model

Variance

reporting

Planning/budget models

Requests inquiries

problems Etc

Plans and budgets Scheduled reports, Special reports Analyses decision

for review inquiry responses

Other

Budgets, standards,

plans. etc

Transaction based files

Figure:6.4:- Management Control database and processing support

Page 5: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Sort

processdisseminate

Customer

Suppliers

Business Units

Functional departments

CompetitorsOthers

Data collection Classify

RetrieveDuplicate

Goals and mission

store

ACTION

Decision maker-n

Decision maket-2

Decision maker-1

Figure:-6.1:data are collected from different sources and processed using a series of steps

Page 6: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

CATEGORIES OF INFORMATION SYSTEMS

TRANSACTION PROCESSING(TP)MANAGEMENT INFORMAION SYSTEM(MIS) Intelligent support systems (ISS), which consist of decision support systems (DSS) , executive information systems (EIS) , and expert systems (ES).

Information Systems are classified in four types of information systems:

Office automation systems (OAS)

Page 7: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

DECISION SUPPORT SYSTEMS(DSS)Decision support systems (DSS) are interactive, well-integrated systems that provide managers with data , tools , and models to facilitate semi structured decisions or tactical decisions.

How a DSS works A DSS accesses and processes large volumes of internal and external data and integrates them with various decision-making models . Internal data are often downloading from the TPS or from other information systems.

Internal Data

External Data

Decision-making Models

Alternative solutions to problems “ What-if”

analysis Goal seeking

Page 8: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Word processing

Desktop publishing

Electronic mail

Voice mail

Video conferencing

Image

Fax

E. m. systems

Multimedia

Knowledge Workers

Office automation

systems

Clerical workers

Figure:6.5:-An Office automation system (OAS) is designed to increase productivity and enhance communications in the workplace.

Page 9: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Methods and

procedures

Computer software

Information System IPO Component

Data Storage

IPO Component

(Process)

Internal control

component

Data (Input)

Business system (environment)

Figure:6.6:- The Input process-Output Components of the Information

Page 10: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Les

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Map

Page 11: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

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Page 12: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

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Page 13: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Con

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Page 14: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Cha

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Page 16: Data ProcessingInformation The basic information system model Data ProcessingInformation Data Storage The basic model with data storage Figure:-6.1:- Basic

Information Systems Applications