Domain and data element

Technical characterstics of a field such as data type and length are defined in Domain
Field label and its length are defined in Data element

Domain: is used to maintain technical attributes such as datasize and catagory even it consist of value table etc..

Dataelement: it is used to maintain symantic attributes such as fields assing ables and even it consist of checktable f1 f4 etc.

domain is a technical characteristic of a field such as data types and length.

Description of a field is provided by a data element

domain is used to assign data type and values for a field to be created in a program. if you make any changes in the domain the attributes of the table related to that domain also changes accordingly

data element acts as a label for domain it describes the semantic characteristics such as description and online help for a field.