https://docs.oracle.com/cd/E51367_01/scmop_gs/FAOFO/F1433056AN132D9.htm

Constraint Definition Language (CDL) is a language that you use to create configurator rules in Oracle Configurator. Configurator rules are statements that define the logic and behavior of a configurable product model. CDL classes are categories of configurator rules that have different purposes and syntax. The valid CDL classes are:
* Default: A rule that assigns a default value to an item attribute or a component quantity when the configuration session starts.
* Constraints: A rule that restricts the values that can be assigned to an item attribute or a component quantity based on conditions.
* Compatibilities: A rule that specifies the compatibility or incompatibility between two or more items, attributes, or quantities.
:
Overview of Configurator Rules
Constraint Definition Language Reference Guide

https://docs.oracle.com/en/cloud/saas/supply-chain-management/r13-update17d/faiom/setting-up- orchestration-processes.html#FAIOM1702198

"Configurator models are imported from items maintained in Oracle Fusion Product Hub (which is accessed by the Product Information Management work area) that have a Structure Type of Model. Only the optional structure and attributes of the product item are imported, because the required elements of the product item cannot be configured by an end user. The option classes and optional standard items for each model item are also imported."
"Configurator models are versioned objects. A model can go through multiple drafts before being released in a series of versions.
There can be multiple drafts of the same model being modified at the same time, but they must be in different workspaces. A message notifies you if you add a model to a workspace when another draft exists in another workspace. There can only be a single released version of a model with the same effective start date."