misd chap 1 intro

INTRODUCTION TO INTRODUCTION TO INFORMATION INFORMATION

SYSTEMSYSTEM

MGT OF ISD MGT OF ISD

(IMS 452)(IMS 452)

FUNDAMENTAL of FUNDAMENTAL of INFORMATION SYSTEMINFORMATION SYSTEM

OverviewOverview

System ConceptSystem Concept

Component of an Information SystemComponent of an Information System

Types of Information SystemTypes of Information System

Information System ActivitiesInformation System Activities

Globalization and Information TechnologyGlobalization and Information Technology

Overview of Information System Overview of Information System (IS)(IS)

Manual and computerized ISManual and computerized IS

The evolution of IS since 1950s from The evolution of IS since 1950s from Electronic Data Processing systemElectronic Data Processing system

Today’s Enterprise and global Today’s Enterprise and global internetworking business ISinternetworking business IS

System ConceptSystem Concept

A system is a group of interrelated A system is a group of interrelated components working together toward a components working together toward a common goal by accepting input and common goal by accepting input and producing output in an organized producing output in an organized transformation processtransformation process

A system is a process that can be manual A system is a process that can be manual or automated that has many part like input, or automated that has many part like input, process and outputprocess and output

System ConceptSystem ConceptCont…Cont…

Information System is an organized Information System is an organized transformation process to produce transformation process to produce information product from input datainformation product from input data


The system has three basic interacting The system has three basic interacting components or functioncomponents or function

- Involves capturing and assembling elements - Involves capturing and assembling elements that enter the system to be processedthat enter the system to be processed

- Processing involves that convert input into - Processing involves that convert input into outputoutput

- Output involves transferring elements that have - Output involves transferring elements that have been produced by a transformation process to been produced by a transformation process to their ultimate destinationtheir ultimate destination


The system concept become even more useful The system concept become even more useful by including two additional component. The by including two additional component. The component are feedback and controlcomponent are feedback and control

FeedbackFeedback – is data about the performance of – is data about the performance of systemsystemControlControl – involves monitoring and evaluating – involves monitoring and evaluating feedback whether a system is moving toward the feedback whether a system is moving toward the achievement of its goal.achievement of its goal.

Component of an Information Component of an Information SystemSystem

The basic of IS model shows five major The basic of IS model shows five major componentscomponents Peoples resourcesPeoples resources Hardware resourcesHardware resources Software resourcesSoftware resources Data resourcesData resources Network resourcesNetwork resources

Component of an Information Component of an Information System….ContSystem….Cont

People resources – includes All IS staff People resources – includes All IS staff and end users.and end users.Hardware resources – like machine and Hardware resources – like machine and media used in information processingmedia used in information processingSoftware resources – such as Software resources – such as computerized instructions or program for computerized instructions or program for peoples carried out their respective task peoples carried out their respective task called procedurecalled procedure

Component of an Information Component of an Information System….ContSystem….Cont

Data resources – consisting of Data resources – consisting of alphanumeric, text, image, video, audio alphanumeric, text, image, video, audio and others form of data which are stored and others form of data which are stored in computer files like databasein computer files like databaseNetwork resources – represent the Network resources – represent the communication media, communication communication media, communication processors, network access and control processors, network access and control software used to connect computers in software used to connect computers in any networkany network

Types of Information SystemTypes of Information System

There are three types of IS which support There are three types of IS which support the operation and management of any the operation and management of any organizationorganization

- Operation Support System- Operation Support System

- Management Information System- Management Information System

- Others Classifications of IS- Others Classifications of IS

Types of Information SystemTypes of Information SystemCont….Cont….

Operation Support SystemOperation Support System Transaction Processing System (TPS) Transaction Processing System (TPS) Process Control System (PCS)Process Control System (PCS) Enterprise Collaboration SystemEnterprise Collaboration System

- Processes data generated by business - Processes data generated by business operation. The role is to support process operation. The role is to support process business transaction, control industrial business transaction, control industrial process, communication and collaboration process, communication and collaboration and update corporate database and update corporate database


Management Information SystemManagement Information System Decision Support SystemDecision Support System Executive Information SystemExecutive Information System

- Focus on providing information and support for - Focus on providing information and support for effective decision makingeffective decision making


Others Classifications of ISOthers Classifications of IS

Expert SystemExpert System Knowledge Management SystemKnowledge Management System Strategic Information SystemStrategic Information System Business Information SystemBusiness Information System

-To support either operation, management or -To support either operation, management or strategic applicationstrategic application

Information System ActivitiesInformation System Activities

1.1. Input data resourcesInput data resources

2.2. Processing data into informationProcessing data into information

3.3. Produces output of information productProduces output of information product

4.4. Storage of data and informationStorage of data and information

5.5. Control of the system performanceControl of the system performance

Information System ActivitiesInformation System ActivitiesCont…Cont…

1.1. Input data resources Input data resources

- accepting business transaction and - accepting business transaction and other event.other event.

-Process by input activities-Process by input activities

-The input of data applied by input -The input of data applied by input media such as keyboard or optical media such as keyboard or optical scanning.scanning.


2.2. Processing data into informationProcessing data into information

- Using the specific software to perform - Using the specific software to perform the calculation, comparison, sorting, the calculation, comparison, sorting, classification and summarizingclassification and summarizing


3.3. Produces output of information productProduces output of information product

- Produces information product is the - Produces information product is the goal of IS. goal of IS.

- Common information product includes - Common information product includes messages, reports, forms and graphic messages, reports, forms and graphic images, which may be provided by video images, which may be provided by video displays, audio responses, paper product displays, audio responses, paper product and multimediaand multimedia


4.4. Storage data and informationStorage data and information

- A basic system components of IS- A basic system components of IS

- Storage is the activity to retain data and - Storage is the activity to retain data and information in an organized manner for information in an organized manner for later user.later user.

- The storage media used are magnetic - The storage media used are magnetic storage device like hard disk, floppy storage device like hard disk, floppy diskette, compact disc, etc.diskette, compact disc, etc.


5.5. Control of the system performanceControl of the system performance- An important activity to measure the - An important activity to measure the performance of IS. performance of IS. -The control of performance is achieved -The control of performance is achieved by having system feedback about output, by having system feedback about output, processing output and storage activities.processing output and storage activities.- The feedback must be monitored and - The feedback must be monitored and evaluated to determine the system is evaluated to determine the system is meeting the performance standard. meeting the performance standard.

Information System ActivitiesInformation System ActivitiesCont …Cont …

Business examples of the basic IS Business examples of the basic IS activitiesactivities

Input – optical scanning of bar-corded tags Input – optical scanning of bar-corded tags on merchandiseon merchandise

Processing – calculating employee pay, Processing – calculating employee pay, taxes. And other payroll deduction.taxes. And other payroll deduction.

Output – producing report and displays Output – producing report and displays about sales performance.about sales performance.


Storage – maintaining record on Storage – maintaining record on customers, employees and product.customers, employees and product.

Control - generating audible signal to Control - generating audible signal to indicate proper entry or sales dataindicate proper entry or sales data

Globalization and Information Globalization and Information TechnologyTechnology

The global economy is increasingly The global economy is increasingly dependent on the creation, management, dependent on the creation, management, and distribution of information resources and distribution of information resources over interconnected network like the over interconnected network like the Internet.Internet.

The business are expanding into global for The business are expanding into global for their product and services.their product and services.

Globalization and Information Globalization and Information Technology….contTechnology….cont

The strategic changes of globalization is The strategic changes of globalization is enabled by using information technology in enabled by using information technology in internet, intranet, and other global internet, intranet, and other global computing and telecommunication network computing and telecommunication network that are the central nervous system of that are the central nervous system of today’s global companies. today’s global companies.

Thank youThank you

misd chap 1 intro

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