KwickClips Course Topics · 44 sec · free
Which values are boundary data here?
Short answer. 11 and 12.
What should you do after a fix?
Retest everything.
Test three kinds
| Type | age example |
|---|---|
| Normal | 30 |
| Boundary | 11 and 12 |
| Erroneous | -5 |
Remember
| Design, then code |
| Test the boundaries |
| Fix, then retest all |
No error? That does not prove it works. The age limit is twelve. Normal is thirty. Boundary is eleven and twelve. Erroneous is minus five. Three habits. Design before coding. Test the boundaries. After a fix, retest all.
This clip is from the full lesson: Designing and testing programs onscreen — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: Edexcel GCSE GCSE Computer Science (1CP2)
Disclaimer. KwickAcademy is free study material for general learning and revision. Parts of it, including the voice-over, are produced with the help of AI tools and may contain errors; if you spot one, please tell us and we will correct it. Syllabus, marks and exam details follow the latest official board publications available to us, and boards can change them at any time, so always confirm against your board's official website and your school. Using this material does not guarantee any marks or result. Board names and trademarks belong to their owners; Kwickprep is not affiliated with or endorsed by any examination board. We never ask for passwords, OTPs or ID numbers. Your progress is saved only in this browser. Full disclaimer · Privacy