# DS Specifications Overview

This public repository holds documentation for the specifications related to DS (Domain Specifications).

* [Domain Specifications](https://gitbook.semantify.it/domainspecifications) - Domain Specifications (DS) are structured documents that define syntactic and semantic, domain-specific constraints for Schema.org annotations.
* [Vocabularies](https://gitbook.semantify.it/vocabularies) - Vocabularies are structured documents which define different elements (like classes and properties) that are used to construct semantic annotations.
* [Lists](https://gitbook.semantify.it/lists) - Lists are structured documents that contain several Domain Specifications or Vocabularies.
* [Schema.org Verification](https://gitbook.semantify.it/sdo-verification) - Holds information relevant to the verification of semantic annotations based on the schema.org vocabulary.
* [RDF-conform Vocabulary for these specifications](https://gitbook.semantify.it/ds-vocabulary) - Holds a vocabulary that defines terms needed to express the structured documents found in this specification.&#x20;
