OCR GCSE (J277) SLR 2.3 Producing robust programs

It includes:

• Student Learning Record Workbook (for use by students)
• Student Learning Record Answers (for use by teachers)
• End of Topic test and answers
• Lesson PowerPoint’s for every lesson
• Any associated answers or references sheets for class activities

These resources provide workbook activities for this topic, primarily for revision of programming principles that will have already been taught throughout the course. Use our comprehensive TIME 2 CODE resources for a programming course.

This topic covers:

2.3.1 Defensive design

• Defensive design considerations:
• Anticipating misuse
• Authentication
• Input validation
• Maintainability:
• Use of sub programs
• Naming conventions
• Indentation
• Commenting

2.3.2 Testing

• The purpose of testing
• Types of testing:
• Iterative
• Final/terminal
• Identify syntax and logic errors
• Selecting and using suitable test data:
• Normal
• Boundary
• Invalid/Erroneous
• Refining algorithms