1 Motivation and background
2 Modeling process for the evaluation of the life cycle dynamics in factory systems
2.1 Identification of life cycle mechanisms
2.2 Analytical description of the life cycle mechanisms
2.3 Modeling of factory life cycle behavior at factory system level
3 Towards strategic life cycle planning of factory systems
-
Value lifetime: A period with an actual need for the factory element, when it is able to fulfil the imposed requirements.
-
Physical lifetime: A period, when the factory element operates without a major breakdown that is beyond economic repair.
-
Economic lifetime: A period, when the factory element has less life cycle costs than a comparable alternative. The comparison is based thereby on the whole life cycle including initial, running (energy, maintenance, labor, etc.) and disposal costs.
-
Environmental lifetime: A period, when the factory element has less life cycle environmental impact than a comparable alternative. The comparison is based thereby on the whole life cycle including raw materials, manufacturing, operation and end of life.