While individual scholars naturally have different research emphases or application contexts, common to all systemic linguists is an interest in language as social semiotic (Halliday 1978)--how people use language with each other in accomplishing everyday social life. This interest leads systemic linguists to advance four main theoretical claims about language:These four points, that language use is functional, semantic, contextual and semiotic, can be summarized by describing the systemic approach as a functional-semantic approach to language."