The M-component [...] serves the lexicon and syntax equally. But it is a component which merely marks the grammatical outputs of these two major grammatical components formally and does not represent any kind of structural grammar itself. The M-component is thus inessential, even optional component like phonology. Indeed, for this reason, it may not be considered an obligatory universal grammatical component; rather, it is a local generator of form dependent on local phonology more tha grammar.
- Beard (2004), Pag. 509

The morphological component is seen as an autonomous extralexical component feeding the phonological rules located just below surface level. Only when all L- and S-derivation is complete does the M-component interpret the features of the stem: lexical, derivational, inflectional, phonological and diacritic.
- Beard (2004), Pag. 512