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You are here: Freetutes.com > Systems Analysis and Design

Introduction to Systems: Summary and Review Questions

Summary

  • A system is a set of interdependent components, organized in a planned manner to achieve certain objectives.

  • System interacts with their environment through receiving inputs and producing outputs.

  • Systems can be decomposed into smaller units called subsystems.

  • Systems falls into three categories

  • Physical or Abstract systems

  • Open or closed system depending upon their interaction with environment.

  • Man-made such as information systems.

  • Three levels of information in organization require a special type of information.

  • Strategic information relates to long-term planning policies and upper management.

  • Managerial information helps middle management and department heads in policy implementation and control.

  • Operational information is daily information needed to operate the business.

  • Information systems are of many types. Management Information, transaction processing, and decision support systems are all information systems.

  • Transaction processing system assist in processing day to day activities of the organization

  • Management information systems are decisions oriented. These use transaction data and other information that is developed internally or outside the organization.

  • Decision support systems are built for assisting managers who are responsible for making decisions.

  • System analysis and design refers to the application of systems approach to problem solving.

Review Questions

  1. Define the term ‘System’.

  2. What are the various elements of system?

  3. Identify two systems in your surroundings.

  4. What is system analysis and design?

  5. What are the roles of system analyst?

  6. Make a list of traits that a system analyst should have.

  7. Will the responsibility of a system analyst vary according to:

    (a) Organization size( for example small or large business)?
    (b) Type of organization(business, government agency, non-profit organization)?

  8. Differentiate between

    a) Open and closed system
    b) Physical and abstract

  9. Main aim of an information system is to process _________.

  10. Transaction processing, __________________ , and decision support system are three types of information system.

  11. State true or false

    a) Decision support system is for middle level management.
    b) Closed systems don't interact with their environment.
    c) Transaction processing system handles day-to-day operations of the organization.
    d) Management information system deals with strategic information of organization.
    e) Problem solving and interpersonal skills are desirable for system analyst.

  

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