Several different controlled vocabularies have been developed and used by the astronomical community, each designed to serve a specific need and a specific group. The Unified Astronomy Thesaurus (UAT) attempts to provide a highly structured controlled vocabulary that will be relevant and useful across the entire discipline, regardless of content or platform. As two major use cases for the UAT include classifying articles and data, we examine the UAT in comparison

Abstract. The Unified Astronomy Thesaurus (UAT) project managers have long defined the UAT as "an open, interoperable, and community-supported thesaurus." How do we solicit the detailed, comprehensive, and consistent community feedback that is required to keep the UAT relevant? The Steering Committee for the UAT has developed a visual organizational tool that lets reviewers suggest new concepts and restructure the existing hierarchy. Researchers and librarians can use this "Sorting Tool" to submit contributions and feedback to the UAT. The UAT Curator adds feedback to the UAT's GitHub Issues, which allows for tracking, searching, and referencing the suggestions. The UAT Curator implements the accepted suggestions, preparing to include them in a future release of the Unified Astronomy Thesaurus. This process of continual improvement ensures that the UAT project remains community supported.

The staff of Wolbach Library, in collaboration with partners at both the Smithsonian Institution and Harvard University, has begun a complex digitization and transcription effort aimed at making a large collection of historical astronomy research more findable, accessible, interoperable, and reusable (FAIR). This collection of material was originally produced from the mid-18th century through the early 20th century by researchers at the Harvard College Observatory and was recently re-discovered in the HCO Plate Stacks holdings. The team of professionals supporting the effort to make this century and a half old science FAIR have developed a novel, distributed workflow to ensure that people can engage critically with this material to the fullest extent possible. The project's workflow is guided by the collections as data imperative conceptual frameworks and is now being referred to as Project PHaEDRA, or Preserving Harvard's Early Data and Research in Astronomy.

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