| It is important to pay attention to the uncertainties in the Eco-indicator method. To deal with uncertainties in the model, we created 3 different perspectives. Uncertainty We distinguish two types of uncertainty: - Data uncertainties
- Uncertainties about the correctness of the models used
Data uncertainties are specified for most damage factors as squared geometric standard deviation. It is not useful to express the uncertainties of the model as a distribution. Perspectives Uncertainties about the model are related to subjective choices in the model. In order to deal with these we developed three different perspectives of the methodology, using the archetypes specified in Cultural Theory [Thompson 1990]. In this approach we follow [Hofstetter 1998]. The table below specifies just three of the many different characteristics per perspective.
| Perspective | Time view | Manageability | Level of evidence | | Hierarchist | Balance between short and long term | Proper policy can avoid many problems | Inclusion based on consensus | | Individualist | Short time | Technology can avoid many problems | Only proven effects | | Egalitarian | Very long term | Problems can lead to catastrophe | All possible effects | Some of the consequences are illustrated in the European LCA. Back | 
