Introduction to Information Systems Chapter 1
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Questions and Answers

What is a system?

A system is a group of procedures, processes, methods or techniques or components united by some form and organized whole.

An open system does not interact with its environment.

False (B)

A closed system interacts with its environment.

False (B)

Name 3 different 'inputs' a system can have.

<p>Individuals, finances, equipment.</p> Signup and view all the answers

Give an example of 'outputs'.

<p>The products or services provided, the reports generated.</p> Signup and view all the answers

What do processes represent in the systems model?

<p>The internal operations or activities that transform inputs into outputs.</p> Signup and view all the answers

What is 'feedback' in the systems model?

<p>A mechanism through which the system receives information about its outputs to adjust its inputs or processes (regulation).</p> Signup and view all the answers

Which of the following is an example of positive feedback?

<p>A company increasing the production of a popular product. (B)</p> Signup and view all the answers

Give 3 examples of inputs a coffee machine requires to operate as a system.

<p>Water, coffee beans, electricity</p> Signup and view all the answers

Give 3 examples of processes a coffee machine performs as a system.

<p>Grinding beans, heating water, brewing coffee</p> Signup and view all the answers

What output does a coffee machine produce as a system?

<p>A hot cup of coffee.</p> Signup and view all the answers

What type of feedback does a coffee machine use?

<p>Detects when water runs out and stops brewing.</p> Signup and view all the answers

Give 3 examples of inputs a computer system receives to operate as a system.

<p>Keyboard/mouse input, Software commands.</p> Signup and view all the answers

Give 2 examples of processes a computer system performs as a system.

<p>Data Computation, software execution.</p> Signup and view all the answers

Give 2 examples of outputs a computer system produces as a system.

<p>Displayed results on a monitor, Audio files.</p> Signup and view all the answers

Give 2 examples of Feedback a computer system uses.

<p>Security Notifications, Error Messages</p> Signup and view all the answers

What is system decomposition?

<p>The process of decomposing the overall system into manageable parts (subsystems,components).</p> Signup and view all the answers

Name 3 of the decomposition criteria.

<p>Purpose, Major Functions/Activities, History</p> Signup and view all the answers

What is system grouping?

<p>Reciprocal subsystems are grouped together.</p> Signup and view all the answers

Name 3 grouping criteria.

<p>Speciality, Product, Time</p> Signup and view all the answers

A ______ defines the overall goal or mission of the system.

<p>purpose</p> Signup and view all the answers

Flashcards

System

A group of components organized to achieve a common goal.

Open System

A system that interacts with its environment.

Closed System

A system that does not interact with its environment.

Inputs

Items used by processes in a system to achieve goals.

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Outputs

Tangible results produced by a system's processes.

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Processes

Activities that transform inputs into outputs in a system.

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Feedback

Information received about the system's outputs to adjust inputs.

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Positive Feedback

Amplifies deviations in a system's performance.

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Negative Feedback

Corrects deviations to maintain stability in a system.

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System Characteristics

Features that help in understanding how a system functions.

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System Decomposition

The process of breaking down a system into manageable parts.

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Subsystem

A smaller system within a larger system, working towards a goal.

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Decomposition Criteria

Guidelines for breaking down a system into subsystems.

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Purpose (Decomposition)

The overall goal or mission of a system that defines its existence.

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Major Functions/Activities

Key operations that fulfill a system's purpose.

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History (Decomposition)

Past influences that shaped a system's current structure.

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Level of Organization

The hierarchical structure within a system's components.

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Structure (Decomposition)

Arrangement and interconnection of a system's components.

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Life Cycle

Stages a system goes through from inception to disposal.

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System Grouping

Involves organizing subsystems based on interconnections and functions.

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By Specialty (Grouping)

Grouping subsystems based on functional expertise.

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By Product (Grouping)

Grouping subsystems based on products or services they produce.

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By Time (Grouping)

Grouping subsystems based on timing and operational phases.

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By Clientele (Grouping)

Grouping subsystems based on customer types or segments.

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By Geographic Basis (Grouping)

Organizing subsystems based on location of operations.

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Example: Coffee Machine

Inputs, processes, outputs, and feedback related to coffee making.

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Example: Computer System

Processes user inputs to produce outputs and notifications.

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Case of a Company as a System

Identifies various subsystems in a business context like sales, production, etc.

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Practical Exercise (System Identification)

Activity involving recognizing purpose and components of a familiar system.

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System Interconnection Formula

Formula to calculate possible interconnections among subsystems: N(N-1)/2.

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Conclusion on Systems

Understanding systems involves analyzing dynamic interactions for improvement.

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Study Notes

Introduction to Information Systems

  • Course name: Introduction to information systems
  • Instructor: Safia Bal-Bourai
  • Course code: 2CP 2024-2025

Chapter 1: Introduction to Systems and Information Systems (IS)

  • This chapter introduces systems and information systems
  • Subtopics within Chapter 1 include:
    • System Concepts
    • Information and Analysis Tools
    • Information System Concepts

System Concepts

  • Objectives:
    • Understand system concepts
    • Apply system concepts to real-world situations
  • Content:
    • What is a System?
    • System Decomposition
    • System Grouping

What is a System?

  • The word "system" comes from the Latin word "systema".
  • It describes the relationship between several working elements or units.
  • There are multiple ways to define a system

Definitions

  • A system is a group of procedures, processes, methods, or techniques, united by some form and organized as a whole.
  • A system is a set of items, equipment, processes, and/or people working together to achieve a shared goal.
  • A system is an organized collection of parts (or subsystems) highly integrated to achieve an overall goal.

Classification of Systems

  • Systems can be classified according to their openness or closeness
  • Open System:
    • Interacts with its environment (e.g., business systems, transport systems, social systems).
  • Closed System:
    • Does not interact with its environment. Changes within the system do not affect the environment, and vice-versa.

System Examples

  • Computer system: Hardware and software designed to process data, enabling user-to-system and system-to-system interaction, efficiently solving problems and tasks.
  • Computer School: Educators, learners, tailored curriculum, administrative support, designed for technology education.

Are These Systems?

  • The slides include images of various systems (solar system, airport, human body, coffee machine, computer system, ATM).

System Characteristics

  • Systems have key characteristics that illustrate how they function.
  • Diagram: The presentation includes a diagram illustrating system characteristics (inputs, outputs, environment, interrelationship, components, and boundary).

The Systems Model

  • Diagram: The presentation includes a diagram illustrating the systems model (input, process, output, feedback).
  • Inputs: Items used by processes to achieve the system's goal (individuals, finances, equipment, facilities, supplies, ideas, and time). External forces can also affect the organization and its products/services.
  • Processes: Internal operations or activities that change inputs into outputs.
  • Outputs: Tangible results (e.g., products/services, reports).
  • Feedback: A mechanism for systems to get information about their outputs to adjust inputs and processes (regulation).
    • Types of Feedback:
      • Positive feedback: Amplifies deviations or results
      • Negative feedback: Corrects deviations to maintain stability

Example: A Business Organization

  • Diagram: The presentation includes a diagram of a business organization as a system, including inputs, a transformation process, outputs, and feedback loops.

What are the Characteristics of these Systems? (Examples)

  • Coffee Machine:

    • Inputs: Water, coffee beans, electricity
    • Processes: Grinding beans, heating water, brewing coffee.
    • Outputs: A hot cup of coffee.
    • Feedback: Detects when water runs out and stops brewing.
  • Computer System:

    • Inputs: Keyboard, mouse input, software commands.
    • Processes: Data computation, software execution.
    • Outputs: Displayed results, audio files.
    • Feedback: Security notifications, error messages.

System Decomposition

  • System decomposition breaks down the overall system into smaller, more manageable parts (subsystems).
    • It is the process of breaking down the overall system into smaller, more manageable components
  • Examples:*
  • Human Body: Numerous organ systems
  • Business Organization: Human Resources, Marketing/Promotion, Customer Service, Sales, Accounting, Finance, Distribution, and different departments (e.g., research and administrative development and management, information technology support, purchasing, legal department)

Decomposition Criteria

  • Purpose: The overall goal or mission of the system; example, a transportation system moving people/goods efficiently.
  • Major Functions/Activities: Key operations; example teaching, research, administration (in an educational system).
  • History: Elements from past contributions; example older technologies in a company's IT system.
  • Level of Organization: Hierarchical structure; example departments, directions, services in a business.
  • Structure: Arrangement of components; example: engine, chassis, electrical system in a car.
  • Life Cycle: Stages from inception to disposal; example: software development life cycle (requirements, design, implementation, testing, deployment, maintenance).

System Grouping

  • Combining reciprocal subsystems.
  • Defining one flow between collections and subsystems.
  • Using different grouping criteria:
    • By specialty, product, time, clientele, and geographic basis.

Grouping Criteria (Specific examples)

  • By Specialty: Grouping departments by medical specialties (e.g., cardiology, neurology, orthopedics) in a hospital.
  • By Product: Grouping production lines according to specific products (e.g., cars and motorcycles in a manufacturing company).
  • By Time: Grouping activities by phases of operation (e.g., preparation, execution, and post-event analysis in event management).
  • By Clientele: Grouping subsystems by customer segments (e.g., individual consumers, small businesses, and large enterprises in a retail system).
  • By Geographic Basis: Grouping for region-specific operations (e.g., operations by continents in a multinational corporation).

Example: Case of a company seen as systems

  •  Various functional areas of a company (sales, production, inventory, personnel, payroll) are presented as examples representing subsystems of a larger business system.

Practical Exercise

  • Choose a familiar system.
  • Identify its purpose, subsystems, and key components.
  • Create a simple diagram illustrating its structure.

Conclusion

  • Systems are composed of interconnected, dynamically interacting elements.
  • Systems can be analyzed to better understand their functioning.
  • Systems can improve their functioning by making informed decisions.
  • Systems can optimize their operation and achieve objectives more efficiently.

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Description

This quiz explores the fundamental concepts of systems and information systems as outlined in Chapter 1. It covers essential topics such as system concepts, analysis tools, and definitions of a system. Ideal for students aiming to understand the building blocks of information systems.

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