Feature specification defaults

Feature specification defaults (FSDs) are a device used in Generalized Phrase Structure Grammar to specify values for those features of a category which are not determined by any other module of the grammar (ID-rule, lexicon entry, Feature instantiation principles, etc.).

Example
FSD 7: [BAR 0] $$\rightarrow$$ $$\neg$$[VFORM PAS] The feature specification [VFORM PAS] (verb form = passive participle) will not be freely instantiated in any lexical category; i.e. it has to be licenced by an ID-rule or an lexical entry.

Comments
Like Feature cooccurrence restrictions, most FSDs can be considered as implications.

Other Languages

 * German Feature specification defaults (de)