The use of methods of the social sciences and computational tools to analyze databases in journalism has had several definitions since Philip Meyer called it precision journalism (PJ). In the last decade, this specialty has had an important development under the term data journalism (DJ), in a differentiating technological and sociocultural environment: Big Data. This research aims to differentiate DJ from PJ and computer assisted reporting (CAR) with a perspective taken from the science and technology studies, focusing the news as a boundary object between programmers, designers, journalists and other actors that now are part of the news production process. For this purpose, 14 in-depth interviews have been made from 2015 to 2017 to data j...