In the Zim language, the children of an object are represented as having a dot (“.” ) between its name and the name of its parent. For instance, a push button whose name is pButton in the form fAddCustomer in the directory dCustomerRecord will be represented as  dCustomerRecord.fAddCustomer.pButton

The complete reference to the object needs to be unique in a database. In other words, form fields need to be unique within a form, forms need to be unique within a display and also within a directory.