Creating Composite Indices Using ArcGIS Best Practices

This technical paper outlines best practices for creating composite indices using ArcGIS. Composite indices combine multiple variables into a single indicator variable, which can be useful for measuring complex subjects such as social vulnerability or entrepreneurial innovation. The document details a ten-step workflow for developing a composite index, starting with defining the index question and dimensions, followed by selecting and weighting variables, and finally visualizing and investigating results. The paper emphasizes the importance of tailoring indices to specific purposes, as existing indices may not adequately address unique questions or local contexts. It also discusses the implications of study area boundaries and spatial units on index results. The document includes references to established indices and encourages readers to consult additional resources for further guidance on index creation methodologies.