The Fichier partagé de données d’autorité du patrimoine culturel et scientifique luxembourgeois (LUDAP) is a shared authority file. It combines and presents the knowledge of Luxembourg’s national heritage institutions. It provides a consistent and reliable way to discover information about individuals who have contributed to Luxembourg's cultural and scientific heritage. This ensures that researchers, educators, and the public can easily find accurate and connected information, even if those individuals are referenced in different ways across various collections.