True or False: CDTs can reference other CDTs.

The statement that CDTs (Complex Data Types) can reference other CDTs is true. In Appian, CDTs are designed to represent complex structures of data that can include various fields, including those that are themselves defined as other CDTs. This means that you can create a parent CDT that contains fields referencing child CDTs, which facilitates the modeling of hierarchical data structures and ensures that related data types can be grouped together.

For instance, if you have a CDT for "Order" that includes a list of "OrderItems", each "OrderItem" can be defined as its own CDT. This relationship allows for clearer data organization and retrieval, particularly when dealing with large datasets that require structured representation. Additionally, this capability enhances data integrity and validation across the application, making it essential for building comprehensive data models within Appian.

The alternatives either suggest a limitation that does not exist or imply conditionality that undermines the flexibility of CDTs in relational representations. Thus, recognizing that CDTs can indeed reference other CDTs is fundamental in understanding how to effectively use them in Appian applications.