Design for disassembly - this is all about knowing a product is put together so that it can be easily and cost effectively taken apart at the end of its life to recapture materials for recycling. For example gluing two different materials together might make it hard for them to be taken apart and recycled at the end of life.
Design for longevity – products that last longer can help to avoid, reduce environmental problems, especially those associated with waste at the end of life. Longevity is about products that are more durable and will retain their value so people can re-sell them at the end of life.
Design for recyclability – What happens to a product at the end of life is assisted by the choices made at the start. What materials have been selected, can they be recycled in the country that the product will be used in? Have they combined materials with fastenings that will make it hard for them to be pulled apart and recycled?
Design for upgradability - being able to upgrade a product as people’s needs or technology changes is an important part of increasing the sustainability of a product – the longer it lasts the better as materials are valued for longer and it reduces the need for someone to buy something new.