Life cycle modeling of buildings. Life cycle impact assessement and building specification

The decision to take the building as built as the pivot of
product modelling, means that the description of a building has
to be process based (building process, operation process) and
object based (construction elements). The link to existing
catalogues of building specifications as a basis for process
description and to existing cost and simple energy calculations
is presented and discussed.

Keywords: Building specifications, catalogues, database model,
ecological impact, life cycle analysis