From Card Catalogs to Semantic Search

Building a Human-Centered Discovery Platform Powered by AI Technologies

Authors

DOI:

https://doi.org/10.5860/ital.v45i1.17511

Keywords:

Artificial Intelligence (AI), Discovery Systems, User Experience, Academic Libraries, Product Development, Usability, Prototyping, Special Collections

Abstract

The first phase of the Reimagining Discovery project at Harvard Library sought to address the challenge of fragmented search experiences of special collections materials using artificial intelligence (AI) technologies, such as embedding models and large language models (LLMs). The resulting platform, Collections Explorer, simplifies and enhances the search experience for more effective special collections discovery. The project team took a user-centered and trustworthy approach to implementing AI, grounding the choices of the platform in user empowerment and librarian expertise. The development process included extensive user research, including interviews, usability testing, and prototype evaluations, to understand and address user needs.

Collections Explorer was developed using a multi-component architecture that integrates multiple types of AI. The team evaluated more than 12 models to select ones that were the best fit for the need, as well as being ethical and sustainable. Detailed system prompts were developed to guide LLM outputs and ensure the reliability of information. The methodical and iterative approach helped to create a flexible and scalable platform that could evolve to support other material types in the future. Initial research showed that potential users are enthused at the prospect of AI-powered features to enhance discovery, especially the item-level summaries and related search suggestions. The project demonstrated the potential of integrating AI technologies into library discovery systems while maintaining a commitment to trustworthiness and user-centered design.

Author Biographies

Carolyn Caizzi, University of California, Berkeley Library

Carolyn Caizzi is the Associate University Librarian for Digital Initiatives and Information Technology at University of California, Berkeley Library. She is responsible for the Digital Lifecycle Program, Library Information Technology, Data Services, Resource Sharing Services, and the Assessment Program, a portfolio which collectively includes digitization, discovery, and delivery; computing, data, and digital scholarship; and technology spaces, interface design, and infrastructure services. Carolyn previously led a strategic multi-year project at Harvard Library to reimagine discovery of millions of resources using AI-driven technologies,  overseeing product development, stakeholder engagement, and Agile team management. Prior to Harvard, Carolyn served as the Head of Repository, Digital Products & Digital Curation at Northwestern University Libraries, where she directed a 16-person team while spearheading innovative digital initiatives, for 12 years. 

Carolyn holds advanced degrees in Library and Information Science (University of Illinois at Urbana-Champaign) and Studio Arts (University of Illinois at Chicago), and a BA in Art Semiotics (Brown). 

Amy Deschenes, Harvard University Library

Amy Deschenes is the Interim Director of UX & Discovery at Harvard Library, where she leads initiatives to create inclusive and user-centered digital experiences across the organization. She oversees user experience strategy, research, and digital projects to ensure that the libraries meet the needs of its diverse community of students, faculty, and researchers.

Amy has established best practices for the user experience program at Harvard Library. She champions inclusive design principles and collaborates closely with stakeholders across the organization to ensure services are user-centered. She is an active leader on campus-wide efforts related to digital accessibility. She publishes and presents frequently on the topics of user experience and digital initiatives in libraries. 

She holds an M.S. from Simmons College in Boston and teaches in the User-Centered Design program at Brandeis University. 

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Published

2026-03-16

How to Cite

Caizzi, C., & Deschenes, A. (2026). From Card Catalogs to Semantic Search: Building a Human-Centered Discovery Platform Powered by AI Technologies. Information Technology and Libraries, 45(1). https://doi.org/10.5860/ital.v45i1.17511

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Articles