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WalesComputer ScienceQuick questions
Unit 3 Programming and System Development
Quick questions on System design, testing and maintenance: strategies, changeover and documentation - WJEC A-Level Computer Science
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is system design?Show answer
Designing thoroughly before coding means the difficult decisions are made and checked on paper, where they are cheap to change, rather than discovered halfway through implementation.
What are testing strategies?Show answer
Using several strategies catches different faults: black-box finds requirement mismatches, white-box finds untested code paths, and beta testing finds real-world problems the developers never imagined.
What is q1?Show answer
State which changeover method keeps the old system available as a fallback while the new one is trusted. [1 mark]
What is q2?Show answer
Name the type of maintenance that adapts a system to run on new hardware or a new operating system. [1 mark]
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