Automatic Attribute Definition mode primarily affects what?

• A. The schema of the feature type
• B. The color of features
• C. The coordinate system
• D. The data value range

Answer: (A)

Automatic Attribute Definition mode determines how FME builds the schema for a feature type—the list of attributes and their data types. When this mode is on, the system infers attribute names and types from the incoming data and creates or expands the feature type’s schema accordingly. This means the structure of the data (which attributes exist and what types they have) is defined automatically by the data itself. If you turn it off, you must manually define the attributes and their types, and the schema won’t adapt to new attributes encountered during translation. This setting affects only the data structure, not visual styling like color, the geometry’s coordinate system, or the actual values and ranges within attributes.