The IA2 data ecosystem is structured primarily into three major macro-categories, designed to meet different data governance and provenance needs: internally managed archives, hosted archives, and a selection of other complementary archives and catalogs.
To learn more about the technical specifications, scientific projects involved, and access methods for each resource type, we invite you to explore the dedicated sections:



What is an Archive
A data archive is an organized and structured collection of digital information stored securely over the long term.
Il centro dati IA2 ha individuato l’Open Archival Information System (OAIS) see standard come il modello di riferimento per la conservazione a lungo termine dei documenti digitali. Esso definisce le funzioni, i ruoli e i pacchetti informativi necessari per mantenere l’accessibilità e l’integrità dei dati nel tempo.

Database support for metadata simplifies discovery through specific filters and search keys usable via web interfaces or programmatic access services—such as publishing services built in accordance with Virtual Observatory standards.
IA2 archives are engineered to maximize data discovery efficiency by natively implementing archiving services according to astronomical interoperability standards, ranging from the definition of Data Models to the publication of astronomical data and related digital products.
The concept of a REPOSITORYis different, and we discuss it in more detail on its dedicated page..
