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Terms and definitions

Terms and definitions

Some of the more common terms and definitions used in Video Player Measurement are listed, in alphabetical order, below.

Term Definition/Calculation
Ad Begin
Start of the ad block, can be pre roll, mid roll or post roll 
Ad Complete
End of the ad block, can be pre roll, mid roll or post roll
Average Device Duration         
The average number of minutes viewed per device (Total Minutes/Video Begins)
Average Time Spent        
The duration in time of the content that was viewed
Average Time Spent %
The total minutes as a % of total potential viewing minutes
Begin        
When the content starts to play (after the player has loaded on the page)
Channel       
Network as supplied to OzTAM  
Complete        
When an entire piece of content has been viewed, including credits and post roll
Device Peak        
Maximum number of concurrent viewing devices during one minute for the selected content for the selected time period
Device Reach        
Number of devices with a threshold of viewing >0
Load
When the video player loads
Media        
Program name as supplied to OzTAM
Progress Events
Includes video content only, and is registered by OzTAM every 60 seconds
Series
Episode information as supplied to OzTAM
Stream Starts
Stream Starts is the total number of requests to play the video content
Total Device Reach        
Total unique devices across all content
Total Potential Viewing Minutes
Unique devices multiplied by content duration
Total Minutes
Total duration from progress events for the media item
VPM Rating
Total minutes played across all devices divided by the content length and rounded to the nearest thousand
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Understanding the terms and definitions relating to VPM reporting helps in analysing and interpreting the data.
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