The document discusses the integration and management of a controlled vocabulary system at ProQuest, highlighting the transition to the Synaptica thesaurus management system for improved taxonomy management. It provides statistics on vocabulary terms and authority files, and outlines the benefits of using Synaptica, including enhanced user interface and real-time responsiveness for indexers. Overall, the changes have led to better organization, discoverability, and standardization of terminology within ProQuest's extensive digital content offerings.