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Systemsapproach

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Kinds of Systems Operational Level

Management Level

Strategic Level

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n oInformation

System

Strategic Level

Management level

Operational Level

Senior Managers

Middle Managers

OperationalManagers

Sales &Marketing Manufacturing Finance Accounting HR

GroupsServed

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Major Types ofSystems

Transaction Processing System

Management Information Systems

Decision Support Systems

Executive Support Systems

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Transaction Processing System(TPS)

Serves operational level of the organization

Transactions,Events

Sorting,Listing,Merging,Updating

Detailedreports,Lists,

summaries

Users: Operational Personnel, supervisors

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Management InformationSystems ( MIS)

Serves the management level of the organization

SummaryTransaction data,High volume data

Routine reports,Low level analysis

Summary andException

reports

Users: Middle managers

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Decision support system(DSS)

Serves the management level of the organization

Low volume data,Analytic model

Interactive,Simulations,

Analysis

Special reports,Decision analysis,

Responses to queries

Users: Professionals, Staff managers

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Executive Support System(ESS)

Serves the Strategic level of the organization

Aggregate data,external,Internal

Graphics,Simulations,

Interactive

Users: Senior Managers

Projections,Responsesto Queries

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Relationship of Systems

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Systems from a FunctionalPerspective

Sales and Marketing Systems

Manufacturing and Production Systems

Finance and Accounting Systems

Human Resources Systems

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Information System components and ResourcesPeople ResourcesSpecialists-system analysts, Software developers, system operators

End users- anyone else who uses information systemsHardware resourcesMachines- computers, video monitors, magnetic disk drives, printers, optical scannersMedia- floppy disks, magnetic tape, optical disks, plastic cards, paper forms

Software Resources

Programs- operating system programs, spreadsheet programs, word processingprograms, payroll programsProcedures- data entry procedures, error correction procedures

Data ResourcesProduct descriptions, customer records, employee files, inventory databases.

Network ResourcesCommunications media, communications processors, network access and controlsoftware

Information ProductsManagement reports and business documents using text graphics displays, audioresponses, and paper forms

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Peopleresources

Softwareresources

Dataresources

Network Resources

Hardwareresources

Control of system performance

Storage of data resources

Input of data

resources

Processing

datainto

information

Output of Information

products