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What is a system?
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.
An open system does not interact with its environment.
False (B)
A closed system interacts with its environment.
A closed system interacts with its environment.
False (B)
Name 3 different 'inputs' a system can have.
Name 3 different 'inputs' a system can have.
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Give an example of 'outputs'.
Give an example of 'outputs'.
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What do processes represent in the systems model?
What do processes represent in the systems model?
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What is 'feedback' in the systems model?
What is 'feedback' in the systems model?
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Which of the following is an example of positive feedback?
Which of the following is an example of positive feedback?
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Give 3 examples of inputs a coffee machine requires to operate as a system.
Give 3 examples of inputs a coffee machine requires to operate as a system.
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Give 3 examples of processes a coffee machine performs as a system.
Give 3 examples of processes a coffee machine performs as a system.
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What output does a coffee machine produce as a system?
What output does a coffee machine produce as a system?
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What type of feedback does a coffee machine use?
What type of feedback does a coffee machine use?
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Give 3 examples of inputs a computer system receives to operate as a system.
Give 3 examples of inputs a computer system receives to operate as a system.
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Give 2 examples of processes a computer system performs as a system.
Give 2 examples of processes a computer system performs as a system.
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Give 2 examples of outputs a computer system produces as a system.
Give 2 examples of outputs a computer system produces as a system.
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Give 2 examples of Feedback a computer system uses.
Give 2 examples of Feedback a computer system uses.
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What is system decomposition?
What is system decomposition?
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Name 3 of the decomposition criteria.
Name 3 of the decomposition criteria.
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What is system grouping?
What is system grouping?
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Name 3 grouping criteria.
Name 3 grouping criteria.
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A ______ defines the overall goal or mission of the system.
A ______ defines the overall goal or mission of the system.
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Flashcards
System
System
A group of components organized to achieve a common goal.
Open System
Open System
A system that interacts with its environment.
Closed System
Closed System
A system that does not interact with its environment.
Inputs
Inputs
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Outputs
Outputs
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Processes
Processes
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Feedback
Feedback
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Positive Feedback
Positive Feedback
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Negative Feedback
Negative Feedback
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System Characteristics
System Characteristics
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System Decomposition
System Decomposition
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Subsystem
Subsystem
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Decomposition Criteria
Decomposition Criteria
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Purpose (Decomposition)
Purpose (Decomposition)
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Major Functions/Activities
Major Functions/Activities
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History (Decomposition)
History (Decomposition)
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Level of Organization
Level of Organization
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Structure (Decomposition)
Structure (Decomposition)
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Life Cycle
Life Cycle
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System Grouping
System Grouping
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By Specialty (Grouping)
By Specialty (Grouping)
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By Product (Grouping)
By Product (Grouping)
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By Time (Grouping)
By Time (Grouping)
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By Clientele (Grouping)
By Clientele (Grouping)
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By Geographic Basis (Grouping)
By Geographic Basis (Grouping)
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Example: Coffee Machine
Example: Coffee Machine
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Example: Computer System
Example: Computer System
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Case of a Company as a System
Case of a Company as a System
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Practical Exercise (System Identification)
Practical Exercise (System Identification)
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System Interconnection Formula
System Interconnection Formula
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Conclusion on Systems
Conclusion on Systems
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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
- Types of Feedback:
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.