# Reference Guides

- [How Competitive Criteria Analysis Works](/latest/configuration/manage-data-metadata/data-discovery/reference-guides/sdd-scoring.md)
- [Built-in Identifier Reference](/latest/configuration/manage-data-metadata/data-discovery/reference-guides/improved-pack-built-in-identifier-reference.md)
- [Built-In Identifier Changelog](/latest/configuration/manage-data-metadata/data-discovery/reference-guides/improved-pack-built-in-identifier-reference/built-in-identifier-changelog.md)
- [Built-in Discovered Tags Reference](/latest/configuration/manage-data-metadata/data-discovery/reference-guides/discovered-tags.md)