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  ##  [Subject Heading](https://information.quantumdictionary.io/subject-heading-0) 

  

 [![Information & Communication Dictionary](/sites/default/files/styles/large/public/2026-01/Information%20%26%20Communication.png.webp?itok=g4emS-T7)](/topic-specific-dictionaries/information-communication)



**Information & Communication Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A controlled term (an authorized label from a subject vocabulary) assigned to a resource to represent its topical content for subject access and retrieval; it is a standardized lexical unit used in cataloging and discovery systems to group and locate resources by topic.