You can create an IS document type in the following ways:
Create an empty IS document type and define the structure of the document type yourself by inserting fields.
Create an IS document type from a source file, such as an XML Schema, DTD, XML document, an event type, JSON object, or e-form template. The structure and content of the IS document type will match that of the source file.
Create an IS document type from a Broker document type.
Create an IS document type from a flat file schema.