FME Attribute

From Fmepedia

An FME attribute is an attribute that is being generated by FME when a source dataset is read. It contains low-level information about the data that is used internally by FME, but may have a use to the user as well.

FME attributes are prefixed with fme. E.g. fme_geometry or fme_feature_type.

Note that these attributes can be altered by a workbench or mapping file, which may cause problems as some of them are mapped to Format Attributes upon writing (fme_geometry being one).