Core Concepts·Last updated 2026-06-29·v1.0
Engines
The shared, core infrastructure that many modules reuse.
An engine is heavy, shared infrastructure that many modules reuse — the "kitchen equipment." There are 2, both CORE.
| Engine | What it does | Powers |
|---|---|---|
| media | Records & plays video/audio, makes secure streaming links, transcribes speech. | AI & human interviews |
| proctoring | Keeps interviews honest — Candidate Integrity Score, abuse detection, gaze tracking, the room scan. | AI interview, panel interview |
Example
The room-scan "turn your laptop left/right" check is the proctoring engine confirming the candidate is alone and the space is clean — before the AI interview even starts.
In plain English
The difference in one line: a module is one business capability; an engine is shared core infrastructure several modules depend on.