Data ProcessingInformation The basic information system model Data ProcessingInformation Data...
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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.](https://reader035.fdocuments.us/reader035/viewer/2022062715/56649d7a5503460f94a5d833/html5/thumbnails/1.jpg)
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
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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
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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.
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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
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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
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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)
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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
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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.
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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
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Les
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Map
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Tra
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Con
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Cha
pter
Map
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A F
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Information Systems Applications