Found:

Tier

PHONOLOGY/MORPHOLOGY: a level of representation where particular information is decoded. EXAMPLE: McCarthy (1981) has argued that the representation of the Arabic form katab 'write, perfect active' consists of three independent tiers: (a) a tier where the root ktb 'write' is represented, (b) a tier where the inflectional morpheme a is represented, and (c) a tier where the binyam I information CVCVC is decoded (= CV tier). Another term is plane.

SYNTAX/SEMANTICS: Thematic theory

LIT.	Clements & Keyser (1983) Goldsmith (1976) Goldsmith, J. (1990) McCarthy, J. (1981) Spencer, A. (1991)