Misrepresenting Expression Stratum Systems As A Semantic Stratum Network

Ngo, Hood, Martin, Painter, Smith & Zappavigna (2022: 95-6):

In terms of how they are construed in paralanguage, entities vary across two main dimensions – SPECIFICITY and DEPICTION, as represented in the system network in Figure 4.1. SPECIFICITY deals with how much meaning is committed in terms of shape and size, while DEPICTION addresses how the entity is visually formed.

Blogger Comments:

[1] To be clear, here the authors misrepresent systems of expression stratum features as a semantic stratum network. This confusion follows directly from their previous misunderstanding of linguistic entities that are realised by paralinguistic expressions as paralinguistic entities, thereby classifying content in terms of how it is realised on the expression plane. This is analogous to classifying these discourse semantic units as phonological entities, since this is how they are realised on the expression plane of language. Cf.:

In terms of how they are "construed" in phonology, entities vary across two main dimensions – PLACE and MANNER (of articulation).

This error invalidates the authors' network — a network being a theory of the system (Halliday). 

[2] To be clear, the relation between meaning and expression/form is realisation.