74. OCR GCSE (J277) 2.3 Defensive design considerations 1

OCR J277 Specification Reference - Section 2.3 This video is the first of two videos about defensive design considerations. Data is not always entered in ways that a program might expect. To prevent invalid data crashing a program, validation techniques are used to check data before it is processed. Don't forget, whenever the blue note icon appears in the corner of the screen, that is your cue to take notes about the content being shown on the current slide. 00:00 Defensive design considerations - Part 1 00:10 Intro 00:15 Input validation 00:28 Type check 01:14 Range check 01:35 Presence check 02:01 Format check 02:27 Length check 02:57 Recap 03:06 Outro Comments are disabled on our videos because we want to ensure they are always appropriate to use in the classroom. However, we value your feedback, so if you have any comments or questions for us, please contact us directly at admin@craigndave.co.uk.