This introduction covers Building Software Armour 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 1 of 5 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 1 of 5
Practice
15 questions
Recall
8 flashcards
Building Software Armour
Defensive design is programming like a pessimist - assuming everything that can go wrong, will go wrong. It's like building a castle with thick walls, a moat, and guards. You don't wait for attackers - you prepare for them. This means checking inputs, handling errors gracefully, and writing code others can understand. A good programmer doesn't trust users to enter sensible data or other programmers to use functions correctly!