Memory Trick: VSCAM

Part of Defensive Design · Section 4 of 6

Key FactsUnit: 3.2 ProgrammingGCSE

Defensive design:

  • Validate input
  • Sanitise data
  • Comments for clarity
  • Anticipate misuse
  • Maintainable code

This key facts covers Memory Trick: VSCAM within Defensive Design for GCSE Computer Science. Revise Defensive Design in 3.2 Programming for GCSE Computer Science with 15 exam-style questions and 8 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 4 of 6 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.

Practice questions for Defensive Design

What is the purpose of input validation in a program?

  • A. To check that the user is who they claim to be
  • B. To check that input data meets specified rules before processing
  • C. To encrypt data before it is stored
  • D. To remove duplicate records from a database
1 markfoundation

Describe three different types of validation check, giving an example of each.

3 marksstandard

Quick recall flashcards

What is authentication?
Verifying a user's identity before granting access to a system
Why use comments?
To explain code so others can understand and maintain it

Previous

Deep Dive: Maintainable Code

Next

Exam Tips

15 questions on Defensive Design: practise free

Instant marking, adaptive difficulty and spaced-repetition flashcards — all aligned to your exam board.

Start revising free →