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data science
This term describes a professional and academic discipline rather than a single task. It is typically used in corporate, research, or academic settings to describe the overarching framework of extracting value from information, distinguishing it from "data analysis," which is often viewed as a subset of the broader science.
As a field of study or a professional domain, the term is treated as an uncountable noun. You would refer to "a degree in data science" or "expertise in data science" rather than referring to multiple "data sciences" unless discussing different branches of the discipline in a highly technical academic context.
Meanings
An interdisciplinary field that uses scientific methods, processes, algorithms, and systems to extract knowledge and insights from structured and unstructured data.
The company hired a team of experts in data science to optimize their supply chain.