Determine Success Metrics for New Group Video-Call Feature
Company: Meta
Role: Data Scientist
Category: Analytics & Experimentation
Difficulty: hard
Interview Round: Onsite
##### Scenario
Meta is exploring a new group video-call feature.
##### Question
Beyond the provided tables, what additional data sources or surveys would you use to measure demand for group video calls? How would you define and track success metrics once the feature is launched? What framework would you apply to decide an upper bound on participants allowed in one group call?
##### Hints
Consider task completion, concurrency, call quality, user satisfaction, infra cost.
Quick Answer: This question evaluates a data scientist's competence in product analytics, experimentation design, instrumentation and metric definition, including trade-off analysis between user satisfaction, call quality, concurrency and infrastructure cost within the Analytics & Experimentation domain.