SLR 10 – Robust and secure programming 60. AQA GCSE (8525) SLR10 – 3.2 Data validation 61. AQA GCSE (8525) SLR10 – 3.2 Authentication routines 62. AQA GCSE (8525) SLR10 – 3.2 Test data 63. AQA GCSE (8525) SLR10 – 3.2 Types of errors 64. AQA GCSE (8525) SLR10 – 3.2 Identifying syntax and logic errors