Applied linguistics ; Needs assessment (method.) ; Incommensurability; Inkommensurabilität; Reseach framework (epistemology) ; Paradigm (epistemology) ; Komplexes System; Complex system; Emergenztheorie; Emergence (theory of) ; Systems theory ; Multilingualism; Polylingualism; Plurilingualism ; Südafrika (engl. Sprache in) ; South Africa (English language in) ; English in South Africa ; Kaaps-Hollands; Kaaps-Nederlands; Kapholländisch; Kapniederländisch; Cape Dutch ; Narrow Bantu; Bantu languages