Metric Dictionary

 

The Conviva Metric Dictionary provides a comprehensive list of definitions for the Conviva Video metrics. This dictionary should be your single source for Conviva Video metric definitions. 

To access metric definitions, login to Pulse or reach out to your Conviva representative for access.

Conviva Video Metrics

Category	Metric
Audience and Engagement	Average % Complete Concurrent Plays Ended Plays	Minutes Ended Play Playing Time (Ended) -- (previously known as Total Minutes and Ended Plays Duration) Playing Time (Interval) -- (previously known as Interval minutes)	Minutes Unique Device Plays Unique Devices with Ended Plays Unique Devices with Attempts
SPI and KPI Metrics	Abandonment High Rebuffering High Startup Time	SPI Streams Streaming Performance Index	Video Playback Failures Technical Video Start Failures Technical
Startup Experience	Abandonment Attempts Exits Before Video Start	Plays Plays (% of Attempts) Video Start Failures High Startup Time	Video Start Failures Business Video Start Failures Technical Video Startup Time
Playback Experience	Avg. Average Bitrate Average Bitrate (Renamed to Avg. Peak Bitrate) Bitrate Switches Average Frame Rate Concurrent Plays Connection Induced Interrupted Plays	Ended Status Ended Plays Unique Devices Exit During Pre-Roll Last Playhead Time Paused Ratio Paused Time Rebuffering Ratio Connection Induced Rebuffering Ratio Connect Induced Rebuffering Time CIR Related Exits	Starting Bitrate Streaming Performance Index Video Playback Failures Video Playback Failures Business Video Playback Failures Technical Video Restart Time Zero CIRR Ended Plays
Ad Metrics	Ad Actual Duration Ad Attempts Ad Average Bitrate Ad Concurrent Plays Ad Ended Plays Ad Frequency/Unique	Ad Impressions Ad Minutes / Unique Devices Ad Minutes Ads Not Started Ad Playback Failures Ad Rebuffering Ratio Ad Start Failures	Ad Impressions (% of Attempts) Ad Startup Time Ad Unique Devices Ads Completed (% of Ad impressions) Exits Before Ad Start Ad Viewer Hours
Not in Metric Selector	Bandwidth Exists Before Video Start Diagnostics % Slate Duration % Slate Plays	Failed Attempts	Video Playback Failures Diagnostics Video Start Failures Diagnostics Viewer Hours Wait Time Before Exit

 

 

For a complete understanding of a metric value, it is important to consider not only the metric calculation, but also the interval of the data and how the metric impacts viewer experience.  You can use this page to learn about Conviva's metric intervals and click a link to a specific metric definition. 

• Conviva Metric Intervals

• Metric Mutability for CDN and Resource Dimensions

Highlight Conventions:

Proper metric names are highlighted with italic and initial upper case. The components of the metric definitions and metric events are highlighted with italics.

Conviva Metric Intervals

Conviva Video metrics support real-time data and data intervals for comprehensive analysis of Conviva's video analytics.

Real-Time Data

Conviva continuously calculates real-time data based on a continuous stream of heartbeats from devices used by active viewers. Each data point aggregates the previous 60 seconds of data collected. In our Pulse user interface, real-time data is refreshed every 2 seconds.

Interval Data

Conviva computes Live, 1-minute, hourly, and other interval data, and aggregates data for longer intervals.

Interval	Data History
Live	10-second data intervals, across 15-min data window.
2 Hour Data	2-hour data intervals for up to any 30-day period within the last 13 months
1 Day Data	Daily data intervals for a period greater than 30 days within the last 13 months
1 Month Data	Monthly data intervals for a period greater than 30 days within the last 13 months.

For Trends page granularity, see Time Granularity.

For aggregated data, a session is counted toward a metric in different intervals depending on the metric type.

Metric Type	Aggregation Interval
Started Metrics	Metrics based on plays that started in that interval, for example VST and Plays.
Ended Metrics	Metrics based on plays that ended in that interval, for example Unique Devices and VPF.

For aggregated data, metric aggregation occurs in different intervals depending on the metric type.

Metric Type	Aggregation Interval
Interval Metrics	Metrics based ongoing events that occur in that interval, for example Concurrent Plays and Rebuffering Ratio.
Lifetime Metrics	Metrics based on a complete session, for example the Play Duration vs Rebuffering Ratio Distribution used to further analyze the Rebuffering Ratio metric.

Dashboard Interval Display

Most pages display computed 1-minute data intervals, along with the option to display data aggregated for 2-hour, 1-day, and 1-month intervals.

Session Timeout/Expiration

Sessions expire if no heartbeats are received for more than 120 seconds.

Session Expiration and Revived Session Handling

If a session does not receive a heartbeat for 120 seconds (2 minutes), Conviva generates a session expired event and treats the session as ended. Session expired events appear in the Viewer Timeline.

If the session revives after a 120 second lapse in heartbeats and restarts sending additional heartbeats, the Conviva continues to monitor the session and considers the revived session a separate session, but with the same session ID.

The session start time distinguishes the sessions having the same session ID. Metrics and event durations are computed separately for the initial and revived sessions. These metric differences for a revived session (that is, a continuously-monitored session that follows a prior expired session with the same session ID) are noted in the metric dictionary definitions and include:

• Revived sessions don’t contribute to VST, because their startup behavior is often unusual.

• Revived sessions that fail to play don’t contribute to any metrics, including VSF and EBVS.

• Revived sessions that play successfully contribute to Attempts and Plays.

Note: Sessions are not expired or ended based on rebuffering time. Sessions “stuck” in rebuffering for a long time (for example, sessions with continuous rebuffering of more than 90 seconds in a long buffering state) don’t contribute to rebuffering metrics.

 

Metric Mutability for CDN and Resource Dimensions

As a result, the metric totals in Trends may not match the sum of each of the CDN/Resource metrics with different mutability types, such as Attempts with Ended Plays, Plays, Interval Playing Time.

 

Metric Mutability Type	Metric CDN/Resource Mutability	Metrics		OTT Customers See Metrics for:
session lifetime	Attributed to all CDNs that were active during the session.	Attempts with Ended Plays Average % Complete Bitrate Switches Ended Plays Ended Plays/Unique Device Ended Status Minutes Ended Play Minutes Unique Device High Rebuffering Impacted Streams Low Bitrate	Paused Ratio Paused Time Playing Time (Ended) SPI Streams Streaming Performance Index Unique Devices with Attempts Unique Devices with Ended Plays Video Restart Time Viewer Hours - (Minutes played) Zero CIRR Ended Plays	All CDN/resources, including Unknown, used during the session.
session join	Attributed to only CDNs used before join.	Abandonment Attempts Diagnostics Exit During Pre-Roll Exits Before Video Start High Startup Time	Plays Plays (% of Attempts) Starting Bitrate Video Startup Time Wait Time Before Exit	All CDN/resource used before session join.
session interval	Attributed based on the bitrate, concurrent plays, rebuffering, or exits during the time period for which CDN is active.	Avg. Average Bitrate Average Frame Rate Average Peak Bitrate CIR Related Exits Concurrent Plays	Connection Induced Interrupted Plays Connection Induced Rebuffering Ratio Connection Induced Rebuffering Time Rebuffering Ratio Playing Time (Interval)	Only the CDN/resource used up to the current point in the session.
session error	Attributed to only the CDN that was active when the error occurred.	Video Start Failures Diagnostics Video Start Failures Video Start Failures Business Video Start Failures Technical	Video Playback Failures Diagnostics Video Playback Failures Video Playback Failures Business Video Playback Failures Technical	Only the CDN/resource used when error occurred in the session.

 

 

Metrics Dictionary Session Termination Session Metrics Expire Session Expiration Expiration CDN Switch CDN Switch CDN Switch Metrics Expire