  The acquisition of physical artifacts not only involves transferring existing
information into the digital ecosystem but also generates information as a
process itself, underscoring the importance of meticulous management of FAIR
data and metadata. In addition, the diversity of objects within the cultural
heritage domain is reflected in a multitude of descriptive models. The
digitization process expands the opportunities for exchange and joint
utilization, granted that the descriptive schemas are made interoperable in
advance. To achieve this goal, we propose a replicable workflow for metadata
schema crosswalks that facilitates the preservation and accessibility of
cultural heritage in the digital ecosystem. This work presents a methodology
for metadata generation and management in the case study of the digital twin of
the temporary exhibition "The Other Renaissance - Ulisse Aldrovandi and the
Wonders of the World". The workflow delineates a systematic, step-by-step
transformation of tabular data into RDF format, to enhance Linked Open Data.
The methodology adopts the RDF Mapping Language (RML) technology for converting
data to RDF with a human contribution involvement. This last aspect entails an
interaction between digital humanists and domain experts through surveys
leading to the abstraction and reformulation of domain-specific knowledge, to
be exploited in the process of formalizing and converting information.
