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IRIS+ and the Five Dimensions of Impact

Developed in partnership with the Impact Management Project, May 2019

Measuring and communicating impact performance through agreed-upon norms, standards, and conventions—all anchored by best practices and based on evidence—ensures that impact investing expands with integrity while enabling investors and enterprises to drive toward stronger impact results.

This IRIS+ and the Five Dimensions of Impact document describes the core concepts and structure for measuring and understanding impact according to the five dimensions of impact as outlined by the Impact Management Project, through the use of both IRIS+ Core Metrics Sets and the IRIS Catalog of Metrics.

This document belongs to the Fundamentals guidance series of IRIS+, which offers an overview of the core concepts and rules underpinning IRIS+-based impact measurement and management.