Description: A representation is the format in which a resource is returned to the client, typically in JSON or XML. This concept is fundamental in the field of information technology, as it enables effective communication between different systems and applications. Representation not only refers to the structure of the data but also to how it is interpreted and used by the client. In the context of REST (Representational State Transfer), representation is crucial as it defines how a resource is accessed and manipulated over the web. Furthermore, in the realm of explainable artificial intelligence, data representation plays a vital role in understanding models and their decisions. In data visualization, representation translates to how data is presented to facilitate analysis and comprehension. Lastly, in AI ethics, data representation can influence the fairness and transparency of algorithms, affecting how the results generated by artificial intelligence are perceived and utilized.