Technology is disclosed for supporting multiple data stores. The set of data stores can be of a uniform type, or the various data stores can be different types (e.g. Lightweight Directory Access Protocol (LDAP), Structured Query Language (SQL), etc.). One implementation of the disclosed technology is with an Identity System. Another implementation is with an integrated Identity System and Access System. Various embodiments of the present invention utilize different means to separate the business logic of a system from the data access logic so that different types of data stores can be used without changing the business logic.