Chado is a relational database schema covering a variety of biological domains.
Chado is modular -- it consists of seperate interlocking modules with well-specified dependencies. Current modules include:
- cv (%ontologies%)
- sequence (Bio Sequence and Sequence Feature data)
- genetic (genetic and phenotypic data)
- expression (expression of gene products such as RNA and protein in time and space)
Chado is a kind of Generic Schema. It uses a relatively small number of table representing basic biological concepts on an abstract level, and relies heavily on %ontologies% (aka cv/ControlledVocabularies) to allow modeling of specific subtypes of this data. The Sequence Ontology is particularly important for Chado.
The main Chado designers are David Emmert and Chris Mungall. A number of other people have contributed significantly to the design, including (in no particular order): Stan Letovsky Richard Bruskiewitz Pinglei Zho Shenquiang Shu Colin Wiel Suzanna Lewis Aubrey De Grey
-- Chris Mungall - 27 Feb 2005