Robust ProgramsDeep Dive
Deep Dive: Maintainable Code
Part of Defensive Design — GCSE Computer Science
This deep dive covers Deep Dive: Maintainable Code within Defensive Design for GCSE Computer Science. Revise Defensive Design in Robust Programs for GCSE Computer Science with 15 exam-style questions and 8 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 3 of 5 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 5
Practice
15 questions
Recall
8 flashcards
Deep Dive: Maintainable Code
| Technique | Purpose | Example |
|---|---|---|
| Comments | Explain complex logic | // Calculate discount for members |
| Indentation | Show code structure | 4 spaces inside IF blocks |
| Naming Conventions | Clear variable/function names | customerAge not x |
| Subprograms | Break code into reusable parts | function calculateTax() |
| Constants | Named values that don't change | const VAT_RATE = 0.20 |