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GCSE Computer Science · key term
How easily a person can read and understand code.
Used by AQA and Edexcel
Paper 1
The ease with which a programmer can read and understand code.
Revise: Identifier NamesReadability means how easily someone can understand code. Maintainability means how easily it can be corrected, updated or extended. The two are connected: a programmer usually needs to understand the existing code before safely changing it.
Specification 6.1.4 · Paper 2
How easily a person can read and understand a program’s code.
Revise: Code Readability and MaintenanceReadability is about how easily someone can follow the code. Maintainability is about how easily someone can change it, perhaps to fix a fault or add a feature.
Meaningful names improve readability and maintainability; they do not make a program execute faster.
When asked to improve readability, make concrete changes: rename an unclear variable, add a useful comment, separate logical sections or apply consistent indentation.
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