What is a product life cycle, and how do the 6 Rs and design for disassembly reduce environmental impact?
Product life cycle and sustainability: the stages of a product's life cycle and life-cycle assessment, the 6 Rs (rethink, refuse, reduce, reuse, repair, recycle), design for disassembly, maintenance and repair, and the finite nature of resources.
A focused answer to Eduqas GCSE Design and Technology (C600) on the product life cycle and the 6 Rs: the life-cycle stages and assessment, the 6 Rs, design for disassembly and repair, and the finite nature of resources.
Reviewed by: AI editorial process; not yet individually human-reviewed
Have a quick question? Jump to the Q&A page
Jump to a section
What this dot point is asking
Eduqas C600 expects you to understand the product life cycle and sustainability: the life-cycle stages and life-cycle assessment, the 6 Rs, design for disassembly, maintenance and repair, and the finite nature of resources. In the written exam this is tested by explaining several of the 6 Rs and by linking design for disassembly to reducing impact.
The product life cycle
Every stage uses energy and creates impact: extracting and processing raw materials, manufacturing, transporting (distribution), the energy used in use, and the waste at end of life. An LCA adds these up so designers can see where the biggest impacts are and reduce them (often it is the use stage for energy-using products, or the material stage for others).
The 6 Rs
- Rethink: design differently so the product needs fewer resources or lasts longer.
- Refuse: do not make or buy what is not really needed (avoid over-packaging, single-use items).
- Reduce: use less material and energy (lighter designs, less packaging).
- Reuse: use the product or its parts again (refillable, repurposed).
- Repair: mend rather than replace (replaceable parts, available spares).
- Recycle: reprocess the material at end of life into new material.
The Rs are roughly in order of impact: rethinking and reducing avoid waste at the source, while recycling deals with it at the end.
Design for disassembly and the finite resource issue
This directly supports the Rs: a product joined with screws and clips (not glue and welds), with its materials labelled, can be separated so working parts are reused, broken parts repaired, and materials recycled cleanly. The driving reason behind all of this is that many resources (fossil fuels, metal ores) are finite, so reducing use and recovering materials extends how long they last.
Try this
Q1. State which of the 6 Rs means mending a product rather than replacing it. [1 mark]
- Cue. Repair.
Q2. Give one design feature that makes a product easier to recycle at end of life. [1 mark]
- Cue. Non-permanent joints (screws/clips) and labelled materials (so parts can be separated and sorted).
Exam-style practice questions
Practice questions written in the style of WJEC Eduqas exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Eduqas C600 20183 marksExplain three of the 6 Rs and how each reduces the environmental impact of a product.Show worked answer →
A 3-mark question, one mark for each R correctly explained with its impact.
Reduce: use less material or energy (a lighter design, less packaging), so fewer resources are used and less waste is made.
Reuse: use the product or its parts again (a refillable bottle, reusing components), so a new product does not need to be made.
Recycle: process the material at end of life into new material (melting down metal or plastic), so raw resources are saved and waste is kept out of landfill.
Other valid Rs: rethink (design differently to need fewer resources), refuse (do not buy or make what is not needed) and repair (mend rather than replace). Markers reward three Rs each tied to a reduction in resource use or waste. Just listing the Rs without the impact caps the mark.
Eduqas C600 20214 marksExplain how designing a product for disassembly supports the 6 Rs at the end of its life.Show worked answer →
A 4-mark Explain wants design for disassembly linked to the Rs.
Design for disassembly means the product is built so it can be taken apart easily at end of life, for example using screws and clips rather than glue and welds, and labelling the materials.
This supports the Rs because the parts can be separated: working parts can be reused, broken parts can be repaired or replaced, and the different materials can be sorted and recycled cleanly rather than ending up mixed in landfill. A product that is glued and welded together cannot be separated, so it is far harder to repair or recycle.
Markers reward: disassembly uses non-permanent joints and labelled materials, which lets parts be reused, repaired and recycled (supporting those Rs), whereas permanent joints prevent it. A general "it helps the environment" with no link to the Rs caps the mark.
Related dot points
- Ecological and social footprint: the environmental impact of materials and products (resource depletion, pollution, carbon footprint, waste), the social impact (working conditions, communities, fair trade), and how design choices reduce both.
A focused answer to Eduqas GCSE Design and Technology (C600) on the ecological and social footprint of materials and products: resource depletion, pollution, carbon footprint and waste, working conditions and fair trade, and how design reduces both.
- Social, cultural, ethical and inclusive issues in design: how products reflect and are influenced by cultural and social factors, the role of inclusive and accessible design, ethical issues such as planned obsolescence, and the influence of design movements and designers.
A focused answer to Eduqas GCSE Design and Technology (C600) on social, cultural, ethical and inclusive issues in design: cultural influence, inclusive and accessible design, planned obsolescence, and the influence of design movements.
- New and emerging technologies: how they impact industry, enterprise, people, culture, society and the environment, including automation, CAD/CAM, the changing workforce, and the positive and negative effects of technological change.
A focused answer to Eduqas GCSE Design and Technology (C600) on new and emerging technologies: how they reshape industry, the workforce, people, culture, society and the environment, with automation, CAD/CAM and a balanced evaluation of their impact.
- Physical and working properties of materials and their sources: defining properties such as strength, hardness, toughness, malleability, ductility, elasticity and conductivity, the difference between physical and working properties, and the origins of the main material categories.
A focused answer to Eduqas GCSE Design and Technology (C600) on the physical and working properties of materials and their sources: strength, hardness, toughness, malleability, ductility, elasticity and conductivity, and where the main materials come from.
- Selecting materials and stock forms, and costing: choosing a material to suit a product, the standard stock forms materials are supplied in (sheet, bar, rod, tube, section), and calculating material cost from price per unit, including allowing for waste.
A focused answer to Eduqas GCSE Design and Technology (C600) on selecting materials and stock forms and costing: standard stock forms, how to choose a material, and a worked material-cost calculation including waste.
Sources & how we know this
- WJEC Eduqas GCSE (9-1) Design and Technology (C600) specification — WJEC Eduqas (2017)