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Why validation matters

Why validation matters

Validation checks whether input is reasonable before a program uses it. It helps stop unsuitable data, reduces crashes from unexpected input, and gives the user a chance to correct mistakes.

Implementing validation Lesson

  1. GCSE
  2. /Computer Science
  3. /Implementing validation

Step-by-step lessons on Edexcel GCSE Computer Science Implementing validation. Each one builds up to exam-style questions. Build strong foundations in binary, logic and core programming constructs before moving on to the more complex algorithm design and evaluation questions.

Lessons