The Measure Authoring Development Integrated Environment (MADiE) is a software tool that redefines the electronic clinical quality measure (eCQM) development and testing process by making it a self-contained process including dynamic authoring and testing within a single application. MADiE allows measure developers to author eCQMS using Quality Improvement (QI)-Core, transfer Fast Healthcare Interoperability Resources® (FHIR) measures from the Measure Authoring Tool (MAT), and to test and verify eCQM behavior. MADiE helps measure developers execute measure logic against the constructed test cases and evaluates if the measure logic aligns with the intent of the measure.