The SDL defines the SimpleTypes similar to the CTS primitive types, including String, Int32, Double, Decimal, Guid, and DateTime, among others. An Enumeration, which defines a map of primitive values and names, is also considered a simple type.
The SDL defines SimpleTypes in a manner comparable to CTS basic data types, including fundamental types such as String, Int32, Double, Decimal, Guid, and DateTime, along with other similar types. An Enumeration is also regarded as a simple type due to its definition of a mapping between basic values and labels.