Slides on the Introduction of FIDELIS TTRAMatrix at the EOSC EDEN Expert Curation and Digital Preservation Network Workshop on 1-2 October 2025

EOSC EDEN European Expert Curation and Digital Preservation Network Bootstrap Workshop October 1-2, 2025, Leuven, Belgium Grant agreement 101188015 The FIDELIS Transparent, Trustworthy Repository Attributes Matrix (TTRAM) Hervé L’Hours UK Data Archive, UK Data Service, University of Essex. CESSDA EOSC EDEN and FIDELIS project partner TTRAMatrix Guide and Template Guide: https://doi.org/10.5281/zenodo.15676188 Template: https://doi.org/10.5281/zenodo.15676331 Work packages 4 Clarification 5 … all the words in the following sentence are ambiguous, disputed or subject to debate. “Types of Trustworthy Digital Repositories (TDR) preserving digital objects.” Introduction: Overview 6 The Transparent Trustworthy Repository Attributes Matrix (TTRAM) provides a structure and reference for the FIDELIS and EDEN projects and for the emerging FIDELIS network. ●It uses 30 activities & functions that are relatively constant across all repositories ●Integrates how these are influenced by repository variables ●Identifies what information should be made transparent We need to understand the practices undertaken by the repository, as well as interactions between activities/functions and variables. In some contexts these factors will influence trust and trustworthiness in the research infrastructure landscape. Introduction: Overview 7 The matrix is a tool to support the project, network and wider EOSC stakeholders in: ●Collecting information in a logical, reusable way ●Understanding the wide variety of types and practices across repositories ●Sharing structured information for consultation and use ●Designing and implementing a functional network of mutual support and aligned practice The FIDELIS Matrix: Variables 8 The first variables we have selected are: ●The levels of retention, curation and preservation being offered ●The Repository, Object, User, Depositor characteristics that vary across repository ‘types’ (disciplinary, generic, national, institutional etc) The Levels of Retention, Curation and Preservation 9 Z. Level Zero. Retention-only Content distributed as deposited. Unattended deposit-storage-access. Data content and supporting metadata are stored for a given time period, D. Deposit Compliance Data content and supporting metadata deposited are checked for compliance with defined criteria C. Initial Curation The digital objects are curated by the repository to meet defined criteria A. Active preservation Long-term responsibility for ensuring that the data and metadata can be understood and rendered as required by the designated community for reuse Activities & Functions Transparency & Variables Implementing the Matrix 25 •Most activities and functions will be broadly applicable. Some will not apply to every repository E.g. if you provide retention, storage and access but don’t curate or preserve objects •The Matrix is not a form to be completed, an assessment or a test, there are no wrong answers or judgements •… CPP vs Technical Infrastructure A|F CPP vs Preservation CPP vs Storage & Integrity CPP to TTRAM Alignment & Gaps eden-fidelis.eu linkedin.com/company/eosc-eden @eosc-eden.bsky.social @EOSC-EDEN Thank you! #EOSCEDEN github.com/EOSC-EDEN EOSC EDEN Zenodo Community