High Quality Content by WIKIPEDIA articles! Ecological design was defined by Sim Van der Ryn and Stuart Cowan as "any form of design that minimizes environmentally destructive impacts by integrating itself with living processes." Ecological design is an integrative, ecologically responsible design discipline. It helps connect scattered efforts in green architecture, sustainable agriculture, ecological engineering, ecological restoration and other fields. The “eco” prefix was used to ninety sighting including eco-city, eco-management, eco-technique, eco- (logical archi) tecture by John Button in 1998 at the first time. The inchoate developing nature of ecological design was referred to the “adding in “of environmental factor to the design process, but later it was focused on the details of eco-design practice such as product system or individual product or industry as a whole. By including life cycle models through energy and materials flow, ecological design was related to the new interdisciplinary subject of industrial ecology. Industrial ecology meant a conceptual tool emulating models derived from natural ecosystem and a frame work for conceptualizing environmental and technical issues.