OpenROAD Workbench contains many predefined field templates, which are contained in various libraries.

A predefined field template contains references to the data and procedures that appear in all instances of fields generated from that template. The customization procedures facilitate setting attributes whose values are unique to particular instances of fields generated from the template.

The field templates contain all of the 4GL scripts that define the static functionality that is common to all fields created from the templates. The field customization procedures that are coupled with the templates dynamically generate fields that are created from the same template unique from one another.

The OpenROAD libraries and their corresponding field templates are listed in the following table: