Key Performance Indicators (KPIs) & Operational Metrics

Overview

This document outlines the core business, technical, and operational performance metrics used to measure platform health, user engagement, and service delivery on Learnille.

📈 Product & Business Metrics

1. Platform Growth & Monetization

Gross Merchandise Value (GMV): Total monetary value of all course purchases, consultation bookings, and space tickets processed.
Net Revenue (ARR / MRR): Total platform commission collected after provider payouts and gateway fees.
Monthly Active Learners (MAL): Unique learners logging in and completing a learning action (video view, quiz submit, consultation attend) per month.
Active Provider Ratio: Percentage of registered instructors/consultants with at least 1 active published course or available consultation slot.

2. Learner Engagement & Retention

Course Completion Rate: Percentage of enrolled students who complete 100% of course sections. Target: > 45%.
Consultation Completion Rate: Percentage of scheduled consultation sessions completed successfully without cancellation or dispute. Target: > 95%.
30-Day Learner Retention Rate: Percentage of learners returning within 30 days of initial enrollment or booking.

⏱ System Reliability & Performance SLAs

Service Domain	SLA Target	Measurement Strategy
API Availability	99.9% Uptime	Sentry / Healthcheck Endpoints
P95 API Latency	< 250ms	NestJS Middleware + Winston Logs
Video Playback Startup Time	< 1.5 seconds	HLS Player Analytics
Real-time Sync Latency (InstantDB)	< 100ms	Socket ping & InstantDB state propagation
Payment Webhook Processing	< 5 seconds	BullMQ Outbox Worker Queue Latency