Atom Pro RSS: choose a clear feed data model

Make identity an explicit choice

An Atom entry has an identifier that should remain stable over time. Its identity is separate from a convenient page address or display title. Treating those concepts separately is useful when an article moves, receives a new headline, or appears through more than one feed.

Write down how your publishing system creates the identifier and how it preserves it during migration. If the answer depends on a field that editors routinely change, reconsider the mapping before generating a large archive.

Map dates and content deliberately

Atom distinguishes the entry’s updated timestamp from its optional published timestamp. It also makes content types explicit, with different rules for text, HTML, and XHTML constructs. The format and these distinctions are defined in RFC 4287, the Atom Syndication Format.

For an implementation, prepare a small mapping document beside your content model. Identify which source field supplies the title, identity, author, original publication date, and genuine update date. Decide what to do when the source lacks a value; do not silently substitute a download timestamp and call it a publication event.

Test a conversion with real examples

When converting from RSS or another source, preserve the original meaning before optimizing the output. A successful XML transformation is not enough if it turns an article edit into a new identity or converts marked-up content into unreadable text.

• Test one newly published entry and one edited entry.
• Include a title containing characters that require XML escaping.
• Check that author and source information remain recognizable.
• Compare plain text and formatted content in the consuming application.
• Verify that following the entry link opens the intended page.

Keep the before-and-after documents with your test notes. They give future maintainers a concrete example of the decisions you made and the behavior you expected.

Choose a format for the actual workflow

Consider the capabilities of your publishing system, the readers you expect to support, and the information your downstream applications need. Avoid publishing two formats merely to create more endpoints to maintain. If both serve a purpose, keep their content and identity mappings consistent.

Read the RSS vs Atom comparison for a broader decision framework, then use the documentation guide to plan implementation checks.