Final answer:
Tagging involves adding descriptive keywords, known as metadata, to documents and media to assist with social cataloging and make searching for content more efficient.
Step-by-step explanation:
The act of tagging involves manually adding metadata to documents and other types of media to help in social cataloging. When you tag a document or media file, you are assigning keywords or terms that describe its content, which aids in organizing and locating the material later through search functionalities.
Tagging is commonly used on social media platforms, photo sharing services, and content management systems, allowing users to classify and categorize content for easier retrieval and collective sharing.