<P> In information systems , a tag is a keyword or term assigned to a piece of information ( such as an Internet bookmark , digital image , database record , or computer file ) . This kind of metadata helps describe an item and allows it to be found again by browsing or searching . Tags are generally chosen informally and personally by the item 's creator or by its viewer , depending on the system , although they may also be chosen from a controlled vocabulary . </P>
<P> In information systems , a tag is a keyword or term assigned to a piece of information ( such as an Internet bookmark , digital image , database record , or computer file ) . This kind of metadata helps describe an item and allows it to be found again by browsing or searching . Tags are generally chosen informally and personally by the item 's creator or by its viewer , depending on the system , although they may also be chosen from a controlled vocabulary . </P>
what is the role of video metadata on youtube
what is the role of video metadata on youtube
helps describe an item and allows it to be found again by browsing or searching
helps describe an item and allows it to be found again by browsing or searching