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2.1 Algorithms - Coggle Diagram

- - - - Cheese and tomato sandwich:
        
        Get ingredients
        
        Collect sandwich creation utensils
        
        Slice bread
        
        Butter bread
        
        Place cheese in required amount
        
        Eat sandwich
      - Find out most popular food:
        
        Create list of options
        
        Create a visual display of forcoming data
        
        Ask peers to tally their opinions
        
        Display and present results
  - - - Removing detail can make the item more intuitive as only things that are needed are shown, simplifying the item.
    - - Instructions to create coffee -> Details on internal working is not necessary.
      - London underground maps -> Only thing needed is the underground lines, nothing above ground.
      - Operating systems -> The user doesn't need to see specific details about the inner workings of the OS, unless requested by the user.
    - - Over abstraction can lead to loss of information as there is a chance that, while removing unnecessary data, some parts of significance can be removed as well.
    - - Under abstraction makes the item unintuitive, by confusing the end user with information not significant to their task.
- - - - Carry out a merge sort for: 4, 15, 2, 22, 1
      - 4,15,2 22,1
      - 2 4 15 1 22
      - 1 2 4 15 22
  - - - Example:
        
        Carry out an insertion sort for: 2, 22, 1, 11, 4, 44, 1
        
        2 22 1 11 4 44 1
        
        1 22 1 11 4 44 1
        
        1 1 1 11 4 44 1
        
        1 1 2 11 4 44 1
        
        1 1 2 4 4 44 1
        
        1 1 2 4 11 44 1
        
        1 1 2 4 11 22 1
        
        1 1 2 4 11 22 44
- - - - The list of data is small
      - The data is not in order
  - - - There is a large list of data
      - The data is in order
- - - - Parallelogram Box
        
        Used for input / output parts of the algorithm.
      - Rectangular Box
        
        General instructions, processes and calculations.
      - Box With Rounded Corners
        
        Used at the beginning and the end of an algorithm.
      - Diamond
        
        Decisions go here. Often these are Yes/No.
      - Sub Routine Box
        
        Link to other flow diagrams.
      - Arrows
        
        Connects the boxes and shows the direction to go next.