otherwise a tag that identifies a important action. The tag has properties such as name, description, color and default duration of the action created with this tag. This time is defined by two parameters: how many seconds before the tag is used, and how many seconds after it is used, the action should start. Tags can belong to groups.
the match event we are interested in is marked on a specific video by a specific set of tags. The action has such properties as: start and end time (inrelation to the video material), tag (can have many), match, team, player, description
an operation consisting of placing tags on video material, resulting in actions. During tagging, the resulting actions are assigned a slice of video material defined by default values in the tag used, but the action time can be changed at any time.