Defensive Design
OCR J2772.3aGCSELesson packSubscription
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- 7 questions
- 24 marks
- about 18 minutes
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Question types: multi-part, matching, multiple choice, true or false, short answer.
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What is the difference between validation and verification?
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About this resource
Understand input validation techniques (type, range, presence, format, length checks), anticipating misuse, and authentication in programs.
12 slides.
Lesson outline
- What Is Defensive Design?
- Input Validation
- Validation in Code
- Validation Flowchart
- Code Demo: Complete Validation
- Validation Check Types
- Anticipating Misuse
- Coding Challenge: Robust Calculator
- Authentication
- Task: Identify the Validation
Unit bundle2.3 Robust Programs


