Open Scripture Information Standard (OSIS) is an XML application (or schema), that defines tags for marking up Bibles, theological commentaries, and other related literature.
The schema is very similar to that of the Text Encoding Initiative, though on the one hand much simpler (by omission of many unneeded constructs), and on the other hand adding much more detailed metadata, and a formal canonical reference system to identify books, chapters, verses, and particular locations within verses.
A work declaration provides basic catalog information based on the Dublin Core standard, and assigns a local short name for the work (similar to XML namespace declarations).
The OSIS schema introduced a method for encoding overlap in XML, known as Trojan milestones, or "Clix".
The officers include Steven DeRose (chair), Kees DeBlois (vice-chair), and Patrick Durusau (editor).