This presentation illustrates how the video engineers in ABEMA practice reliability engineering in video QoS/QoE. It is basically done by measuring SLIs and discovering issues with SLOs. RUM helps us measure SLIs and decide SLOs, and STM helps us aggressively discover issues that are hard to detect with RUM only.
19. 20 以上のサポートデバイス
● iPhone
● iPad
● Apple TV
● Android Smartphone
● Android Tablet
● Android TV
● Fire Tablet
● Amazon Fire TV
● Google Chrome
● Mozilla Firefox
● Internet Explorer
● Microsoft Edge
● Apple Safari
● Google Chromecast
● Google Daydream View
● Amazon Echo
● LINE Clova Desk
● SONY BRAVIA
● Panasonic VIERA
● TOSHIBA REGZA
● LEOPALACE21 Life Stick
● CCCAIR Air Stick
● ...
31. 状態遷移から算出可能なメトリック例
● Quality of Service を計測するメトリック
○ Startup Failure
○ In-stream Crash
● Quality of Experience を計測するメトリック
○ Buffer Ratio
○ Buffering Events
○ Join Time
○ Average Bitrate