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Dernière mise à jour : Mai 2018

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DEXiPM model

DEXiPM
Integrated design and dynamic assessment tool for crops that is multicriteria, multiscale and multiactor.

DEXiPM is a contraction of DEXi, software that manages qualitative decision-aid trees, and IPM (Integrated Pest Management). DEXiPM helps design theoretical cropping systems that are innovative and use pesticides efficiently by assessing the overall sustainability of these systems. Its advantages are based on the inventiveness that it allows during system design, as well as its assessment approach that can be adjusted according to the priorities of multiple stakeholders.

Approach

DEXiPM was designed for researchers and aims to assess performances of cropping systems based on principles of IPM. This appears in the structure of the model through the addition of specific criteria for crop protection to strengthen assessment of this point and to allow for detailed comparisons of different protection strategies.

Since the model is used to facilitate design groups, it is completely qualitative and has a deep branching structure (75 basic criteria and 86 aggregated criteria). Socio-economic criteria related to the context outside crop fields were added to assess system performances in their assessment context. These criteria can thus be used to identify obstacles to innovation and define public policies or better suited sector strategies by simulating changes in the context. The model can weight criteria according to users’ priorities.

Stakeholders can thus test many choices and debate them transparently, since the hierarchy of the criteria is plainly visible.

DEXiPM - Pondération des critères

Weighting of criteria

 

See also