2.1.1

Question 1

What is abstraction?

Answer 1

-removing the unnecessary details and highlighting the important details within a given context

Question 2

Why is it necessary to use abstraction?

Answer 2

Things that aren’t relevant would require unnecessary programming / design effort, extra computational resources and could detract from the main purpose of the program

Question 3

What is the difference between abstraction and reality?

Answer 3

-Abstraction is a ​simplified representation of reality
-Real-world values can be stored as ​variables​ and ​constants

Question 4

what must you consider when devising an abstract model given a scenario?

Answer 4

• What is the problem that needs to be solved?
• How will the model be used?
• Who will the model be used by?
• Which parts of the problem are relevant based on the target audience and purpose
  of the model?