This document discusses the challenges of digital transformation in museums. It outlines different types of digital mediation used in museums including timelines, design, consultation, narrative and generative interaction, personalization, gamification, augmentation, and contribution. It also discusses new frontiers for museums like artificial intelligence, virtual and augmented reality, and the internet of things. The document notes that visitors expect knowledge and want to build knowledge quickly. It argues that museums must innovate sustainably and transparently to meet visitor expectations in the digital age.