Metadata is simply data about data — the structured description (title, creator, date, subject) that lets any resource be found and identified. A library catalogue record is metadata; so is the information behind a photo, a song, or a web page. Schemes like Dublin Core keep it tidy.

Cataloguing is really one specialised corner of a much bigger idea. Every digital thing you use is wrapped in metadata working quietly in the background. Once you see it, you see it everywhere — and you understand how the digital world stays findable.

The shape of good metadata

• Descriptive — what is it? (title, author, subject) — for finding and identifying.
• Administrative — who owns it, what may you do with it, what format is it?
• Structural — how the parts fit (chapters of a book, pages of a scan).

Why a shared scheme matters

Dublin Core is a small, widely used set of fifteen basic elements (title, creator, date, subject…) that almost any system can understand. Like cataloguing standards, its value is agreement: when everyone describes things the same way, everything becomes searchable together.

🔗 A friendly free guide: Dublin Core Metadata Initiative

That completes the cataloguing toolkit: standards to describe, classification to shelve, MARC to encode, and metadata as the bigger picture behind it all. Have a look at the Course Wrap-up, and well done.

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