Embedding Digital Regulatory Infrastructure in Morocco: Institutional and Technical Conditions Associated with Perceived Usefulness

Abstract Purpose and objective: This study examines the post-adoption acceptance of SIGAM, the information system of Morocco's nuclear and radiological regulatory authority, to determine how technological, social, organizational, and security-related conditions are associated with perceived usefulness and continuance intention. Methodological approach: The study adopts a quantitative, explanatory, and cross-sectional design and uses partial least squares structural equation modeling (PLS-SEM). Sample: Data were obtained from a survey of 200 existing SIGAM users, including 40 internal and 160 external users. Main findings: Perceived ease of use, social influence, facilitating conditions, and trust and perceived security were positively associated with perceived usefulness, whereas organizational support produced a counter-theoretical negative coefficient. Perceived usefulness was strongly associated with continuance intention, and the indirect associations were consistent with mediation. Main conclusion: Perceived usefulness emerges as an institutionally embedded translation mechanism linking technical and institutional conditions to continuance intention within an asymmetric regulator-operator relationship. Limitations: The study does not establish effects on actual continued use, regulatory performance, safety outcomes, or public value; discriminant-validity and common-method concerns require cautious interpretation. Keywords developing countries; digital government; information systems continuance; Morocco; public regulatory information systems; technology acceptance