How to Rapidly Deploy an Online Education Solution During Crises

The COVID‑19 pandemic caused an explosive growth in online education demand, putting severe pressure on traditional offline training institutions that struggled with class cancellations, revenue loss, and staffing constraints.

To survive and thrive, these institutions must consider both short‑term crisis response and long‑term digital transformation, focusing on core capabilities that improve resilience.

Online Teaching Modes

Four main delivery models are discussed:

Live large‑class sessions : high reach, simple architecture, low cost, but limited interaction and higher teacher control requirements.

Small‑class sessions (1‑10 participants) : richer interaction with audio‑video, PPT sharing, and a classroom feel similar to offline small‑group training.

Dual‑teacher model : a remote instructor delivers content while an on‑site assistant manages classroom order and provides real‑time Q&A, ideal for regions with limited teaching staff.

Recorded on‑demand courses : pre‑produced videos enable scalable consumption, though interaction is lower; suitable for membership‑based business models.

An emerging AI‑interactive class combines pre‑recorded video snippets with AI‑driven logic for automated tutoring, facial recognition, emotion analysis, and voice synthesis, enhancing engagement in subjects like math, programming, and language learning.

SaaS Tool Selection

Institutions should first clarify their teaching objectives—whether they need a quick promotional class or a long‑term online platform—then match the appropriate SaaS solutions. Common tools include general‑purpose video conferencing (e.g., Tencent Meeting), specialized education platforms (e.g., ClassIn), and integrated cloud services that support live, recording, and AI features.

Key selection criteria are:

Compatibility with the chosen classroom format.

Scalability to handle sudden traffic spikes.

Cost structure (subscription vs. pay‑as‑you‑go).

Brand perception and user experience.

Technical Implementation with Cloud Services

For developers capable of building custom solutions, Tencent Cloud offers a full stack of video‑related services:

Live streaming – low‑latency, high‑concurrency delivery.

TRTC (real‑time audio/video) – cross‑platform real‑time communication for interactive classes.

VTS (cloud transcoding) – on‑demand format conversion for OTT, PC, and mobile playback.

VOD (video on demand) – upload, storage, automated transcoding, watermarking, and accelerated playback.

IM chat component – real‑time messaging integrated with the classroom.

Interactive whiteboard – proprietary Tencent technology for PPT, video, and media sharing.

These services enable rapid elastic scaling, cost‑effective resource usage, and a unified architecture that can support both live and on‑demand scenarios.

The typical architecture consists of a front‑end client (web, H5, mini‑program), a media processing layer (live, TRTC, VOD), storage on cloud object storage, and optional AI modules for facial detection, emotion analysis, and speech synthesis.

Industry Trends and Recommendations

Post‑pandemic, the market is consolidating around OMO (online‑merge‑offline) models, with AI augmentation becoming a differentiator for large‑scale classes. Institutions that invest in flexible cloud infrastructure and AI‑enhanced tools will have a competitive edge.

Practical advice includes:

Maintain remote teaching capabilities for existing students during holidays.

Provide staff training on online tools and foster internal collaboration.

Adopt a phased approach: start with SaaS for quick launch, then gradually develop custom platforms as needs mature.

Plan for sudden traffic spikes by leveraging cloud elasticity rather than on‑premise IDC servers.

Key Q&A Highlights

Typical small‑class capacity is up to 20 participants with 6‑8 concurrent audio‑video streams. AI‑interactive courses are usually pre‑recorded with offline interaction logic. Mini‑programs for education must comply with platform certification requirements. Pricing varies by SaaS vendor; many basic tools (Tencent Meeting, QQ/WeChat live) are free during the pandemic, while custom platforms incur service and bandwidth costs.