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Information system


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Information system for MBA-III

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Information system

  1. 1. Information Systems UniversityofEducationOkara Campus 1 Inam Ul-Haq Lecturer Computer Science MS Computer Science Sweden,
  2. 2. Information Systems • Why Do People Need Information? • Individuals - Entertainment and Enlightenment • Businesses - Decision making, Problem Solving and Control UniversityofEducation OkaraCampus 2
  3. 3. Information Systems • Data vs. Information • Data • A “given,” fact; a number, a statement, or a picture • The raw materials in the production of information • Information • Data that have meaning within a context, data after process UniversityofEducation OkaraCampus 3
  4. 4. Data, Information, and Systems • Data Processing = Information • Example: Customer Survey • Reading through data collected from a customer survey with questions in various categories would be time-consuming and not very helpful. • When processed, the surveys may provide useful information. UniversityofEducation OkaraCampus 4
  5. 5. Data, Information, and Systems • Generating Information • Computer-based ISs take data as raw material, process it, and produce information as output. (Definition of Computer) UniversityofEducation OkaraCampus 5Input-process-output
  6. 6. Information Systems • What Is a System? • System: A set of Components that work together to achieve a common Goal • Subsystem: One part of a system where the products of more than one system are combined to reach an ultimate goal • Closed System: Stand-alone system that has no contact with other systems • Open System: System that interfaces with other systems UniversityofEducation OkaraCampus 6
  7. 7. Information Systems UniversityofEducation OkaraCampus 7 Several subsystems make up this corporate accounting system.
  8. 8. Information Systems • Information and Managers • Systems thinking • Creates a framework(software) for Problem Solving and Decision Making. • Keeps managers focused on overall goals and operations of business. • History: emerged in 20th century • Definition Information system (IS) is the study of complementary networks of hardware and software (IT) that people and organizations use to collect, process, filter, create, and distribute data. UniversityofEducation OkaraCampus 8
  9. 9. Information Systems UniversityofEducation OkaraCampus 9Qualities of humans and computers that contribute to synergy
  10. 10. Why Study IS? • Information Systems Careers • Systems analyst, specialist in enterprise resource planning (ERP), database administrator, telecommunications specialist, consulting, etc. • Knowledge Workers • Managers and non-managers • Employers seek computer-literate professionals who know how to use information technology. • Computer Literacy Replacing Traditional Literacy • Key to full participation in western society UniversityofEducation OkaraCampus 10
  11. 11. Types of Information Systems • Transaction processing System (TPS) • Knowledge Management System (KMS) • Learning Management Systems (LMS) • Database Management System (DBMS) • Office Information Systems (OIS) • Management Information System (MIS) UniversityofEducationOkara Campus 11
  12. 12. Information System Basic Components (For computer-based IS) An IS using computer technology to carry out some or all of its planned tasks. •Hardware- these are the devices like the monitor, processor, printer and keyboard, all of which work together to accept, process, show data and information. •Software- are the programs that allow the hardware to process the data. •Databases- are the gathering of associated files or tables containing related data. •Networks- are a connecting system that allows diverse computers to distribute resources. •Procedures- are the commands for combining the components above to process information and produce the preferred output. UniversityofEducationOkara Campus 12