Social, Environmental and Economic (SEE) sustainability is sometimes referred to as People Planet Profit or the Triple Bottom Line (TBL). Environmental sustainability may also be referred to as ecological sustainability.

A Life cycle can be segmented in various ways. To keep it simple BlueScope have broken it up into four phases; Get, Make, Use and Next.

Phase Description Example
GET Virgin materials extraction, materials production and transport. Mining
Steel Production
MAKE Design and construction; or
Design, manufacture and transport to consumer; or
Design, manufacture, wholesale and/or retail.
Building design and construction
USE Product is utilised for its intended purpose and maintained. Occupancy of building
Repairs, alterations and additions
NEXT End of life scenarios including reuse, recycling, down cycling or disposal to landfill. Demolition
Reuse and/or recycling