Meaning of ir as a prefix in Odoo

Question

Reading odoo API or source code your would encounter the term ir ( usually as a prefix ), I can't seem to figure out what does it stand for ?

for example

ir_sequence

Answer 1

Although there's no official statement on the matter AFAIK, I tend to think about it as Internal Resource (various resources the system needs to work fine, but not actually meaningful for normal users day-to-day work), just as I think about the res prefix as Resource (which is not internal, it's for normal usage).

As example, res.config is to create visual configuration wizards to be presented to a user that may not be the sysadmin (he could be just the sales responsible for example), but many settings are actually stored as ir.config_parameter records, which are only accessible for the sysadmin and are used extensively by Odoo internal code.

Answer 2

The meaning is Information Repository.