The KerDST (Deliberation Support Tool) including the KerBabelTM Deliberation Matrix (DM) and the KerBabelTM Indicator Kiosk (KIK) is an on-line tool offering users a multi-stakeholder multi-criteria deliberation framework that can be applied to any desired situation of choice or discussion.


The KerDST Deliberation Matrix aims to help a group of stakeholders understand a particular issue or problem through a qualitative assessment of the problem including articulation of important values, an understanding of the broader system, and assessment of strategies to address the issue in question.

Latest Version Version 3
State of Development Open Beta

Development Contact

University fo Versailles Saint-Quentin-en-Yvelines
REEDS, OVSQ, UVSQ, bâtiment Aile Sud, 15, Bergerie nationale, Parc de Rambouillet, 78120 Rambouillet, France

Main Developers

  • Centre d’Economie et d’Ethique pour l’Environnement et le Développement - Universite de Versailles Saint-Quentin-en-Yvelines France


Outcome Areas Economic, Environmental, Social, Cultural
Management Domains Land, Coastal, Urban Systems, Natural Hazards, Biodiversity, Community, Air Quality, Freshwater
Subdomains Ecosystem/Habitat, Crop/Farm Systems, Fishing & Aquaculture, Education, Health, Land Use, Native biodiversity & Biodiversity Loss
Spatial Resolutions Unknown
Spatial Extents Unknown
Spatial Dimensions Unknown
Temporal Resolutions Not applicable
Temporal Extents Years
Steady State or Dynamic Unknown
Level of Integration Economic, Environmental, Social, Cultural

Input & Output Data

Key Input Data Various types fo indicators
Input Data Formats XLS(X)


Open/Closed Source Open Source
Licence Type No Licence
Licence Cost
(Non Commercial)
Not available for non-commercial use
Licence Cost
Not available for commercial use

User Information

Operating Systems MS Windows, Mac OS X Cms drupal
Software Needed Firefox navigator
User Interface Graphical desktop Web interface
Ease of Use Moderate KerDST is a framework. It is a tool and a method to develop an integrated assessment on environmental issues.
Use in Policy Process Plan (Policy Formulation), Check (Policy Evaluation)
Documentation, for the documentation
Support for the tool
Users Forum None

Technical Considerations

Programming Language CMS Drupal
Methods included for calibration and validation None
Methods included for managing uncertainty Is part of the process of assessment: at indicators production level (documentation of production process, pedigree...) and at evaluation level (to establish judgments by stakeholders)
Analytical Techniques Délibération support tool
Model Structure

The six steps of the deliberation process are: 1. Identify the issue- What is the issue, at what scale does it occur, who is it an issue for, and why is it an issue? 2. Organise the issue- What are the options/strategies to address the issue, who are the stakeholders/actors impacted by the problem and or the strategies, what are the performance criteria by which the issue and proposed strategy can be assessed against? 3. Identify and mobilise tools for representation (e.g., maps, models of processes and systems). 4. Deliberate the consequences of the current system and any proposed strategy with regard to the identified stakeholders and the identified performance criteria. 5. The preparation, validation and communication of the results and recommendations 6. Return to step one (the deliberation process is iterative).

Keywords integrated assessment, indicators, qualitative
Key References

Associated Case Studies

  • Other Key Case Studies

    Potential case study and how it works NZ Creating Futures - use of deliberation matrix