Abstract: A system for defining objects within a database is disclosed. The system includes an inventory identification application that generates an inventory identifier. The inventory identifier being a reference saved to the database that specifies characteristics of data within an inventory unit. A publisher using the inventory identifier application defines the specific characteristics and the inventory identifier application generates code. The publishers use the generated code within a website to recall the inventory identifier that is saved in the database. The system also includes a server system that receives a request to recall the inventory identifier. The request is the result of execution of the generated code when the website is accessed by a user. The request is fulfilled by accessing the inventory identifier at the database and matching data within the inventory unit based on the stored characteristics within the inventory identifier.