Why We Care

Not only does semiotics affect how we understand symbol features of our urban landscape, it influences how we interpret both language and meaning and visual language and meaning. The construction of meaning in a photograph, for example, which we use liberally to document our work, and as part of the work itself. Beyond that, it has great value in the understanding of computer science, which is one of the internal engines of our project. The internet, our cell phones, our GPS technology all use computer science somewhere in their mechanism.

In computer science, where it is considered as an application of mathematical logic, semantics reflects the meaning of programs or functions.
In this regard, semantics permits programs to be separated into their syntactical part (grammatical structure) and their semantic part (meaning). For instance, the following statements use different syntaxes (languages), but result in the same semantic:
x += y; (C, Java, etc.)
x := x + y; (Pascal)
Let x = x + y; (early BASIC)
x = x + y (most BASIC dialects, Fortran)
Generally these operations would all perform an arithmetical addition of 'y' to 'x' and store the result in a variable called 'x'.
Semantics for computer applications falls into three categories:[12]
Operational semantics: The meaning of a construct is specified by the computation it induces when it is executed on a machine. In particular, it is of interest how the effect of a computation is produced.
Denotational semantics: Meanings are modelled by mathematical objects that represent the effect of executing the constructs. Thus only the effect is of interest, not how it is obtained.
Axiomatic semantics: Specific properties of the effect of executing the constructs as expressed as assertions. Thus there may be aspects of the executions that are ignored.
The Semantic Web refers to the extension of the World Wide Web through the embedding of additional semantic metadata; s.a. Web Ontology Language (OWL).

SO, MOST IMPORTANTLY< SEMANTICS CAN AFFECT HOW WE TAG OUR PROJECTS, HOW WE TAG OUR DATA, HOW WE CREATE A METADATA TO OUR PROJECTS THAT SIMULATES THE SEMANTIC WEB.