Abstract
<jats:p>Interfaith dialogue is often assessed through participation, declarations, or visibility, leaving doctrinal-source integrity, institutional follow-through, and risk governance under-specified. This article develops the Interfaith Doctrinal Dialogue Framework (IDDF) as a non-reductive design-science artefact for formal and semi-formal Abrahamic theological dialogue, with Christian–Muslim programmes as the initial application. The study synthesised the IDDF design corpus, a consolidated domain–axis model, and the complete KPI catalogue; no participants, field cases, or operational datasets were analysed. Artefact development organised the framework into five strategic domains and fourteen specialist axes, generated 280 candidate KPIs, and subjected the catalogue to structural checks for uniqueness, placement, controllability, auditability, and theological boundaries. The resulting architecture confines measurement to evidence integrity, dialogue process, institutional capability, inclusion, risk, data governance, and implementation, explicitly excluding the truth, superiority, sanctity, or salvific validity of any religious tradition. IDDF also specifies KPI dictionary requirements and human-supervised controls for AI-assisted retrieval, coding, narrative analysis, and dashboards. The framework integrates comparative-theological requirements with design-science and performance-governance logic, enabling institutions to move from symbolic engagement toward auditable learning and accountable implementation. The artefact remains evaluation-ready rather than empirically validated; content validity, reliability, measurement invariance, weighting sensitivity, and field usability require subsequent multi-tradition testing.</jats:p>