Largely known as Record, Struct or Structure in most programming languages, this GeneXus object allows you to define complex data structures. An SDT represents data with structures made up of several elements, such as a Customer struct.
SDTs make it easy to transfer parameters (more specifically, they allow you to provide/use structured information when using web services), they simplify XML automatic reading and writing, and make it possible to manage lists of elements of variable length.
Structured Data Type (SDT) object