Formulations
Semioticians classify signs or sign systems in relation to the way they are transmitted (see modality). This process of carrying meaning depends on the use of codes that may be the individual sounds or letters that humans use to form words, the body movements they make to show attitude or emotion, or even something as general as the clothes they wear. To coin a word to refer to a thing (see lexical words), the community must agree on a simple meaning (a denotative meaning) within their language. But that word can transmit that meaning only within the language's grammatical structures and codes (see syntax and semantics). Codes also represent the values of the culture, and are able to add new shades of connotation to every aspect of life.
To explain the relationship between semiotics and communication studies, communication is defined as the process of transferring data from a source to a receiver. Hence, communication theorists construct models based on codes, media, and contexts to explain the biology, psychology, and mechanics involved. Both disciplines also recognize that the technical process cannot be separated from the fact that the receiver must decode the data, i.e., be able to distinguish the data as salient and make meaning out of it. This implies that there is a necessary overlap between semiotics and communication. Indeed, many of the concepts are shared, although in each field the emphasis is different. In Messages and Meanings: An Introduction to Semiotics, Marcel Danesi (1994) suggested that semioticians' priorities were to study signification first and communication second. A more extreme view is offered by Jean-Jacques Nattiez (1987; trans. 1990: 16), who, as a musicologist, considered the theoretical study of communication irrelevant to his application of semiotics.
Semiotics differs from linguistics in that it generalizes the definition of a sign to encompass signs in any medium or sensory modality. Thus it broadens the range of sign systems and sign relations, and extends the definition of language in what amounts to its widest analogical or metaphorical sense. Peirce's definition of the term "semiotic" as the study of necessary features of signs also has the effect of distinguishing the discipline from linguistics as the study of contingent features that the world's languages happen to have acquired in the course of human evolution.
Perhaps more difficult is the distinction between semiotics and the philosophy of language. In a sense, the difference lies between separate traditions rather than subjects. Different authors have called themselves "philosopher of language" or "semiotician". This difference does not match the separation between analytic and continental philosophy. On a closer look, there may be found some differences regarding subjects. Philosophy of language pays more attention to natural languages or to languages in general, while semiotics is deeply concerned about non-linguistic signification. Philosophy of language also bears a stronger connection to linguistics, while semiotics is closer to some of the humanities (including literary theory) and to cultural anthropology.
Semiosis or semeiosis is the process that forms meaning from any organism's apprehension of the world through signs. Scholars who have talked about semiosis in their sub-theories of semiotics include C. S. Peirce, John Deely, and Umberto Eco.
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