Number of hours-of-service interruptions during the reporting period.
Organizations should footnote all assumptions used.
This metric is intended to capture the amount of time a service—for example, hours of electricity, running water, or internet service—is interrupted or unavailable to clients. Organizations may use Product/Service Detailed Type (PD1516) to describe or disaggregate this metric by services provided. By comparing this metric to the total duration of the reporting period, organizations can estimate the quality of services provided.
Organizations are encouraged to use this metric in combination with Service Hours Provided (PI5683) to capture service outage rates. Organizations may choose to use Service Interruptions (PI3720) to capture the number of interruptions rather than the total hours of interruption.
This metric is often used by International Finance Institutions (IFIs) as part of infrastructure analysis.
This metric may help describe the HOW MUCH Scale dimension, which helps estimate the number of the targeted stakeholders experiencing the outcome. For more on the alignment of IRIS metrics to the five dimensions of impact, see IRIS+ and the Five Dimensions of Impact (https://iris.thegiin.org/document/iris-and-the-five-dimensions/). No single metric is sufficient to understand an impact; rather, metrics are selected as a set across all dimensions of impact. The selection of metrics to measure and describe the five dimensions should be based on best practice and evidence.
June 2022 - IRIS v5.3 Released (current version)
Immaterial change. Minor revisions to definition and usage guidance for clarity.
IRIS Metrics Work Better in Sets
To use IRIS metrics—and the resulting data—to understand impact performance, IRIS metrics should be used and analyzed in generally accepted sets and according to well-defined objectives. IRIS+ gives you access to generally accepted Core Metrics Sets aligned to common Impact Themes and Sustainable Development Goals (SDGs).