  This work presents a maturity model for assessing catalogues of semantic
artefacts, one of the keystones that permit semantic interoperability of
systems. We defined the dimensions and related features to include in the
maturity model by analysing the current literature and existing catalogues of
semantic artefacts provided by experts. In addition, we assessed 26 different
catalogues to demonstrate the effectiveness of the maturity model, which
includes 12 different dimensions (Metadata, Openness, Quality, Availability,
Statistics, PID, Governance, Community, Sustainability, Technology,
Transparency, and Assessment) and 43 related features (or sub-criteria)
associated with these dimensions. Such a maturity model is one of the first
attempts to provide recommendations for governance and processes for preserving
and maintaining semantic artefacts and helps assess/address interoperability
challenges.
