Multicriteria Decision Support Systems in Geographic Information Science

Summary

Multicriteria Decision Support Systems (MCDSS) within Geographic Information Science integrate spatial analysis with decision-making frameworks to evaluate alternatives across multiple, often conflicting criteria. By coupling Geographic Information Systems (GIS) with multicriteria decision analysis (MCDA) methods—such as weighted linear combination, outranking and pair-wise comparison—these systems transform layers of environmental, socio-economic and infrastructural data into composite suitability or risk maps. Users assign importance to criteria through weighting schemes and apply aggregation rules to produce ranked alternatives, facilitating transparent and reproducible planning. Key applications span urban land‐use allocation, resource management, hazard mitigation, public health prioritisation and infrastructure siting. Recent advances emphasise automation of the standardisation and aggregation steps, incorporation of volunteered geographic information for participatory assessments, and integration of regionalisation techniques to reduce computational complexity in high-resolution analyses. Globally, MCDSS approaches support sustainable development by enabling stakeholders—from municipal planners to water-resource managers—to reconcile technical assessments with policy objectives and community preferences in a spatially explicit manner.

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Multicriteria Decision Support Systems in Geographic Information Science publication trend

The graph below shows the total number of articles in multicriteria decision support systems in geographic information science across all publications each year (not limited to Nature Index journals).

Technical terms

Geographic Information System (GIS): A computer-based platform for capturing, storing, manipulating and visualising spatial data layers.

Multicriteria Decision Analysis (MCDA): A set of formal methods for evaluating alternatives based on multiple quantitative and qualitative criteria.

Weighted Linear Combination (WLC): An additive aggregation technique that computes a suitability score by summing criteria values multiplied by their weights.

Outranking Methods: Non-additive MCDA approaches that compare alternatives pairwise to establish preference relations (e.g., PROMETHEE).

Analytic Network Process (ANP): A generalisation of the Analytic Hierarchy Process that accommodates interdependencies among criteria through network structures.

Volunteered Geographic Information (VGI): User-generated spatial data collected through participatory sensing or crowd-sourcing platforms.

References

  1. Urban land suitability analysis using geospatial techniques and combined weighting approach in Gabes zone, Southeastern Tunisia. Geomatics Natural Hazards and Risk (2023).
  2. Multicriteria Decision Analysis of Sites with Increased Nutrient Contents in Water. Water (2022).
  3. Land use suitability analysis using an approach combining GIS, regionalization, and PROMETHEE II. Annals of GIS (2024).
  4. GIS automated multicriteria analysis (GAMA) method for susceptibility modelling. MethodsX (2019).
  5. A Volunteered Geographic Information-Based Environmental Decision Support System for Waste Management and Decision Making. Sustainability (2020).

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