Concept scope at a glance
A learning platform that cannot fail on exam day
Online learning traffic is uneven: quiet for weeks, then thousands of learners at once for a live class or exam. A platform that slows or loses answers at that moment loses trust. This concept explores how to build for the peak, not the average.
Plan for the peak, rehearse the failure
We would separate content delivery from the application, process heavy work in queues, and autoscale for predictable spikes. Load tests at more than the expected peak and failover drills would happen well before any real exam.
- 1PlanEstimate peak concurrency and set clear reliability targets.
- 2ArchitectSeparate video and content delivery from the core application.
- 3BuildCourses, progress tracking and assessments with autosave.
- 4RehearseRun load tests and failover drills, then fix what they reveal.
What we would decide, and why
Serve video from a CDN
Keep heavy media away from the application servers.
Make assessments resilient
Autosave answers so a dropped connection never loses work.
Release without downtime
Roll out changes gradually and keep the option to roll back.
What success would look like
This is a concept brief, so there are no results to report. These are the measures we would track if it were built, and what we would check first.
- Assessment completion during peak loadMeasured in rehearsals and live events
- Page response time under loadTracked against the agreed budget
- Downtime caused by releasesTarget: none
What we would check first
- Are the peak estimates realistic?
- Do video players meet accessibility needs?
- Do content licences allow the planned delivery?
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