Chapter 10 -Mis_introduction

42
1 LECTURER MR PEEPS GONDE

description

6

Transcript of Chapter 10 -Mis_introduction

  • LECTURER MR PEEPS GONDE

  • MANAGEMENT INFORMATION SYSTEMS MBA 522

  • COURSE OUTLINEIntroduction to MIS An Introduction to Concepts of Systems and Organisations Software SystemsComputer Hardware Strategic Uses of Information TechnologyThe Systems Development ProcessFile and Database Management Systems

  • COURSE OUTLINE (Contd) Distributed SystemsData Communications and Networks The Internet: Electronic Commerce and Office AutomationPeople, Culture and organisational Impact of Information Systems Information Systems Security, Data Control and PrivacySummary and Dispersal

  • MANAGEMENT INFORMATION SYSTEMS

    What is it?

  • It is an old, old story: the Board does not understand ICT

    and the IT manager does not understand the business.

    Karen Young, African Review of Business and Technology

  • WHAT IS AN INFORMATION PROBLEM?Think of an information problem as a goal to be achieved What really counts in problem solving is achieving a certain outcome Interrelated components collect, manipulate, distribute data/information, feedback to meet an objective

  • FOR EACH SITUATION, STATE THE INFORMATION PROBLEM You urgently need to put some pictures into a document that is due tomorrow, but the scanner keeps freezing.The pay office keeps producing incorrect pay cheques for workers because the software does not understand the new tax laws.Animals are being killed by fast-moving traffic on a busy road that crosses the animals' feeding route. On your way to an important meeting at night, you run out of petrol in your car. The only service station nearby is closed.

  • WHY STUDY INFORMATION SYSTEMS?Lack of understanding of the part of the upper managementMake you an educated end-userContribute in the design of new systems (in your job)Increase organizational successAdvance your careerHelp you meet the challenges in a global market where management decisions become more complex Learn how data and information is used by the organization

  • MIS DEFINITIONManagement

    Information

    Systems

  • INFORMATION CONCEPTS

    Data versus Information

    Characteristics of valuable information

    Value of information

  • DATA VS. INFORMATIONData raw facts of real world entities (employee name, number of hours worked in a week, inventory part number)Information facts organised to give meaning (total monthly sales, inventory levels)Relationships defined among data can create different types of informationAdding new/different data redefines data content and information type, adds value to informationProcess transforming data into information, processing of creating relationships among data

  • DATA VS. INFORMATION (Contd)Knowledge awareness and understanding of a set of information and ways that information can aid a specific task or decision makeData processing manually, mentally, computer-based

  • CHARACTERISTICS OF VALUABLE INFORMATIONAccurate - error free, inaccurate information generated by inaccurate input data (GIGO)Complete - contains all important facts. E.g. an investment report without costs is incompleteEconomical - economical to produce (cost vs. value)Reliable - dependent on, source of data is importantRelevant - to the decision maker, computer sales totals may not be relevant to a driverSimple - understandable to use, not overly complexTimely delivered when needed, knowing last weeks weather may not assist in the choice of clothes to wear Accessible - obtainable in the right format and timeSecure - inaccessible by unauthorized users

  • THE VALUE OF INFORMATIONDirectly linked to how it helps decision makers achieve their organisational goals. E.g. a new computerised ordering system may cost $30.000 and generate $50.000. The value added by the new system is the increased value of $20.000.

  • What is a System?A system is a set of components that interact to accomplish goals. Systems have inputs, processing mechanisms, outputs and feedback. e.g Mabhetshu Co. on-line account information system Goal: Provide account information to investors (one of many goals) Inputs: Stock prices, investor information Processing: Determine portfolio value (multiply # of shares...) Output: Provide the value of each investors portfolio Feedback: Investor reaction

  • WHAT IS AN INFORMATION SYSTEMIS specialised type of system, input, manipulate, output, feedback mechanismInput activity of gathering and capturing raw data. E.g. Production systems number of hours worked, university grading system students grades by lecturers before a semester summary gradesInputs can be manual or computerised Processing converting/transforming data into useful outputs. E.g. calculations, comparisons and taking alternative actions, data storage for future useProcessing can be manual or computerised

  • WHAT IS AN INFORMATION SYSTEM (ContOutput useful information, documents or forms. E.g. paychecks, reportsOutput from one system can be input to another system. E.g. sales orders can be input to customer billing systemsOutput manual (hand written reports), computerised (printed, display screens)Feedback output used to make changes to input or processing activities. E.g. errors enable the correction of input or alter processImportant o managers, employees, decision makers tell their performance level

  • WHAT IS AN INFORMATION SYSTEM (ContForecasting estimating future requirements. E.g. future sales and order more inventory before a shortage

  • MANUAL AND COMPUTERISED SYSTEMSIS manual or computerisedManual systems investments analysts draw charts and trend lines for investment decision makingMany programs begin manual and transformed to computer based systemsSimply computerising a manually system does not improve system performanceIf the IS is flawed, computerisation magnifies the impact of the flawsRe-engineer the IS

  • COMPUTER-BASED INFORMATION SYSTEMSComputer-based information systems (CBIS) hardware, software, telecommunications, and proceduresConfigured to collect, manipulate, store, and process data into informationHardwareComputer equipment input, processing, output activitiesInput devices keyboards, automatic scanning devicesProcessing devices CPU and main memoryStorage and output devices secondary storage, printers, screens Hardware assists the organisation save the sale and increase revenue

  • COMPUTER-BASED INFORMATION SYSTEMS (Contd)Software computer programs that govern the operation of the computerAllow computers to process payroll, send bills to customers, provide better customer serviceTwo types of software systems software (Windows XP), applications software (Office XP)Databases an organised collection of facts and information on customers, employees, competitorsTelecommunications electronic transmission of signals for communicationsEnables organisation to carry out processes and tasks through effective computer networks

  • COMPUTER-BASED INFORMATION SYSTEMSPeople people who manage, run, program, and maintain the system (programmers, analysts, engineers, DBA, users)Procedures strategies, policies, methods, and rules for using CBIS (access levels, disaster plans, backup)

  • CBIS Components (Contd)

  • CLASSIFICATION OF INFORMATION SYSTEMS

    Classification by Organisational Structure

    Classification by Functional Structure

    Classification by Support Provided

  • CLASSIFICATION BY ORGANISATIONDepartmental Information Systems Departmental Systems HRMDivisional System HRMCentralised System - HRM

    Enterprise Information SystemsEnterprise Resource Planning (ERP) single integrated systems

    Interorganisational SystemsConnect several organisationsCommon in business partnering, extranets are the basis for IOS

  • CLASSIFICATION BY FUNCTIONAL AREAThe accounting information system

    The finance information system

    The manufacturing (operations/production) information system

    The marketing information system

    The human resources management information system

  • CLASSIFICATION BY SUPPORT PROVIDEDTransaction Processing Systems (TPS) supports repetitive, mission-critical activities and clerical staffManagement Information System (MIS) supports functional activities and managersKnowledge Management Systems (KMS) supports all employees for corporate knowledgeOffice Automation System (OAS) support office workersDecision Support Systems (DSS) supports decision making by managers and analystsEnterprise Information Systems (EIS) supports all managers in an enterpriseGroup Support Systems (GSS) support people working in groupsIntelligent Support Systems (ISS) support mainly knowledge workers, expert systems being the major technology

  • TRANSACTION PROCESSING SYSTEMDay-day activities of an organisationSupports operational levels of an organisationSupplies data to higher systemsStructuredHigh input and output volumes

  • SUB-SPECIES OF TPSManufacturing and Production Systems

    Sales and Marketing Systems

    Finance and Accounting Systems

    Human Resource System

  • OFFICE AUTOMATION

    An attempt to create a paperless office

  • SUB-SPECIES

    Communication Systems

    Teleconferencing

    Groupware

  • MANGEMENT INFORMATION SYSTEMSSummarises TPS data

    Monitoring performance

    Managing an organisation

    Used by middle managers

    For example, Inventory Control System

  • DECISION SUPPORT SYSTEMS

    Often used by strategic management staff

    Make simulations and predictions

    Example, 5-year operating plan

  • KNOWLEDGE WORK SYSTEMS

    Used by technical staff

    CAD/CAM

  • EXPERT SYSTEMSUses artificial intelligence techniques in problem solving

    Deskilling

    AdvantagesMore information storage capacitiesComputers do not forgetUp to date informationAvailability (24/7)Reach

  • IS RELATIONSHIPS

  • ADDITIONAL CONCEPTS

    Subsystem

    System entropy

    System stress

  • WHAT INFORMATION CAN BE USED TO PROVIDE FEEDBACK ABOUT EACH OF THE FOLLOWING?

    Employee morale

    New product success

    Sales person performance

    Customer profitability

  • FIVE BASIC PARTS OF ORGANISATIONS

    The administrative component

    The Strategic apex

    The middle line

    Technostructure

    Support staff

    Operating core

  • END OF PRESENTATION