Description:
Odoo domain is used to select records from a model or database table. It is a very common use case when you need to display a subset of all available records from an action, or to allow only a subset of possible records to be the target of a many2one relation. The way to describe these filters in Odoo is called a domain. It can be defined as a list of operations that are used to filter your data or for searching.
Each condition in a domain contains a field name, operator, and value.