Computer Science for IGCSE & O level - Programming (Section 3 - No. 27)
How can you make your program easier to modify and update (more maintainable)?
By using global variables for all data.
By using meaningful variable names and comments.
By writing the code as quickly as possible.
By making the code as compact as possible, even if it is less readable.
Forklaring
Clear names and comments help future modifications.