NSSCAS Design and Technology (8256) study materials
NSSCAS Design and Technology (8256) study resources

NSSCAS Design and Technology (8256): Design in Context: Sustainability, Health and Safety, and Social/Ethical Issues

NSSCAS Design and Technology (8256) · Work through your exam, one topic at a time.

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Design in Context: Sustainability, Health and Safety, and Social/Ethical Issues

This domain tests whether you can judge a design beyond function: its environmental load across life-cycle stages, its risks to users and makers, and its social and ethical consequences. Questions ask for reasoned trade-offs, not slogan answers.

Core concepts

  • Sustainability: apply the waste hierarchy - refuse, reduce, reuse, repair, recycle, recover - and life-cycle assessment (LCA) from material extraction through manufacture, use, disposal. Consider embodied energy, water, transport, recyclability and biodegradability.
  • Health and safety: identify hazards, assess risk (likelihood and severity), and apply the hierarchy of control - eliminate, substitute, engineer controls, administrate, then PPE. Workshop examples include dust extraction, machine guards and safe isolation.
  • Social and ethical issues: fair labour, conflict minerals, accessibility and inclusive design, privacy, planned obsolescence and affordability. Identify who benefits and who bears the risk.

Worked example

Package a small electronic device. Expanded polystyrene is light and protective but fossil-based, bulky and poorly recycled locally. Moulded pulp is renewable, compostable and protective when designed with ribs, but heavier and energy-intensive to dry. Recycled card with a paper wrap is widely recyclable but needs an internal cushion. Reasoning: choose moulded pulp plus recycled card, then drop-test to confirm protection. The decision weighs disposal, transport mass and function; 'eco-friendly' alone is not a justification.

Traps

  • Claiming a product is sustainable because one part is recyclable.
  • Ignoring the use phase, which may dominate energy use.
  • Listing PPE as the first safety measure instead of eliminating the hazard.
  • Treating ethical issues as opinions without naming the affected group.