Computer systems and sub-programs

Question 1

Top-down design

Answer 1

Where an overall task is broken down.

Question 2

Decomposition

Answer 2

Breaking down a large task into smaller tasks.

Question 3

Structure diagram

Answer 3

Shows tasks that have been broken down and how they relate to each other.

Question 4

Module

Answer 4

An individual section of code that can be used by other programs.

Question 5

Advantages of top-down

Answer 5

• different designers can work on modules individually
• each module is a shorter program they are easier to write, test and debug
• designed modules can be given to different programmers.