IA3 Part 1

IA3 Part 1

1. Data structures

   • Data structures are a fundamental organizational format to store, retrieve, and manage data
   • JSON structures
     • Keys
       • A key is a string enclosed in quotation marks
       • A unique way to identify data
     • Values
       • A value can be a string, number, boolean, null, object, and array
     • Arrays
       • Arrays store multiple values under a single key

2. Data specifications

   • JSON data types
     • String
       • Text enclosed in quotes
     • Number
       • Numeric value: Integer or decimal
     • Boolean
       • Two possible values: True or False
     • Null
       • Represent no value or empty
     • Object
       • Key value pairs grouped together
     • Array
       • Ordered list of values

3. Data interface

   • CSS
     • Colours
     • Layout
     • Design
     • Definition
       • CSS is used to add design, layout, and colours in display for different screen sizes and variations
   • Formats
     • HTML table
       • Rows
       • Cells
       • Heading
       • Sample data
       • Columns
     • JSON
     • XML
       • Key Value Pairs
         • Data structure consisting of two linked pairs of data

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