What Is Data Semantics?

Data semantics is the study of the meaning and use of specific pieces of data in computer programming and other areas that employ data.

In data semantics, the focus is on how a data object represents a concept or object in the real word.

Semantic meaning occurs only when a group agrees on specific definitions for certain data types or words.

The need for data semantics arose in the 1970s when the United States Air Force developed a program to help people communicate more clearly about current manufacturing techniques they were using.

One example of how data semantics helps relate pieces of code or data to the real world is a library card catalog.

In a computer database, a space of memory for holding a book's title and information can be thought of as a virtual version of the original paper title card.

The creation of data semantics is similar to mapping out grammar and style rules that determine how words are used together to convey a specific meaning.