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# Asterix Data Model (ADM) #
-# Basic data types #
-An instance of Asterix data model (ADM) can be a _primitive type_ (`Int32`, `Int64`, `String`, `Float`, `Double`, `Date`, `Time`, `Datetime`, etc. or `NULL`) or a _derived type_.
+An instance of Asterix data model (ADM) can be a _*primitive type*_ (`Int32`, `Int64`, `String`, `Float`, `Double`, `Date`, `Time`, `Datetime`, etc. or `NULL`) or a _*derived type*_.
## Primitive Types ##