Structure Of Is

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Transcript of Structure Of Is

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Structure of Structure of Management Management

Information SystemsInformation Systems

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FLOW OF PRESENTATION

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The PhysicalComponents of MIS

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A Networked Information System: Three-Tier Architecture

A Networked Information System: Three-Tier Architecture

CorporateHeadquarters

Finance ProductionMarketingand Sales

CorporateDatabases

Mainframe

DivisionalDatabases

Divisional Minicomputerswith Divisional

Databases

Local Area Network:PCs with Local Databases

SalesforceNotebooks

RegionalOfficeWork-stations

Plant Minicomputers

TelecommunicationsLink

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A Downsized Networked Information System:Client/Server Architecture

A Downsized Networked Information System:Client/Server Architecture

LAN

LAN

WAN

Client PCs

WorkgroupServer

DatabaseServer

Client PCs

Enterprise Computer(Central Server)

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Information for Management

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Management Reporting Systems (MRS)

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Decision Support Systems (DSS)

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The Structure of Decision Support SystemsThe Structure of Decision Support Systems

ModelManagement

DataManagement

DialogManagement

Decision Support System

Internal and ExternalDatabases

User

...

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Executive Information Systems

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The Structure of Expert SystemsThe Structure of Expert Systems

ExplanationFacility

InferenceEngine

UserInterface

Expert System Knowledge Base

User

Facts of the Case

Recommendation,Explanation

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Informational Support of Management

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A Summary of the Informational Support of Management

A Summary of the Informational Support of Management

GreaterImportanceof ExternalInformation

MoreSummarizedInformation

LongerTimeHorizon

LessStructuredProblems

StrategicManagement

TacticalManagement

OperationsManagement

Hum

an Resources

Production

Finance

Marketin

g

BusinessFunctions

EIS

DSS

MRS

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Informational Support of Management

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Functional Departmentation & MIS

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The Role of MIS

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The Role of MIS

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The Role of MIS

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The Role of MIS

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Conclusion

"We are moving toward teach them how to do it themselves:"– UNIX environments, work stations,

PC, LANs, application packages– SATISFACTION, USABILITY,

Effectiveness, efficiency