Data Catalog: The Library Card for Your Data
A data catalog is like a library card catalog for your company's data, telling you what exists, where it lives, and what it means. It helps analysts find trustworthy datasets and engineers trace the impact of schema changes. The footgun is letting it go stale.
A data catalog is a centralized inventory of your company's data assets. Think of it as a searchable library catalog that tells you what data exists, where it lives, what it means, and who owns it. Analysts use it to discover trustworthy datasets for reports, while engineers consult it to understand the impact of a schema change. The biggest footgun is treating it as a one-time project; an out-of-date catalog actively misleads users and erodes trust in the data it's meant to clarify.
Read the original → Wikipedia: Data catalog
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