Starting from
hitl-infographic.drawio, apply the following changes to produce the HOTL version. These instructions are temporary — once the infographic is complete, replace this section with a textual summary and a side-by-side (or stacked) view of both infographics.
Color system (established):
Both nodes are in the loop flow, not external overlays. Inner loop ring is visually closed. ✅
Inner loop flows continuously with teal arrows. No governance gaps. ✅
Human Monitor(s) and Circuit Breaker(s) boxes exist with orange-dashed borders. ✅
Still needed — outer bracket / arc:
Connect Human Monitor and Circuit Breaker to each other with a bracket or arc at the top of the diagram. Label it: HUMAN ON THE LOOP. This makes clear they form a coherent outer oversight layer rather than two orphaned floating boxes.
Still needed — connection lines:
These two nodes need thin dashed read-only observation lines to specific inner loop nodes. Style these as visually distinct from loop flow arrows — lighter weight, open or hollow arrowhead (suggesting “observes” not “controls”).
| Monitoring Node | Observes (draw line to) | Why |
|---|---|---|
| Human Monitor(s) | Product UI/API | Watching user-facing predictions and session outcomes |
| Human Monitor(s) | Data | Watching incoming signal quality |
| Circuit Breaker(s) | Auto-Deploy | Can halt deployment if thresholds breach |
| Circuit Breaker(s) | Model Training | Can halt retraining if drift detected |
Kill Switch: Rather than a third standalone node, treat it as an attribute of the Circuit Breaker. Add · kill switch to its sub-bullets. The Circuit Breaker IS the kill switch mechanism.
| Element | Status |
|---|---|
Loop center label → HOTL System (Human-On-The-Loop) closed-loop learning |
✅ Done |
| Title → Part 2: From HITL to HOTL | ✅ Done |
| Bottom caption updated | ✅ Done |
"Closing the Loop" explanatory text box |
✅ Done |
"New in HOTL" label near Auto-Deploy |
✅ Done |
"replaces Model Governance" note |
✅ Done |
Legend: 'Main' Loop: HITL (with Human in it) |
⬜ Still says HITL — update to 'Main' Loop: HOTL (closed-loop) |
Developer Training existed in HITL as a normal operational bypass for manual tuning. In HOTL it still belongs, but its character changes completely — it is now a rare emergency path, not an operational one.
In HOTL, the developer doesn’t disappear. They just stop being part of normal operations and become the person who shows up when the Circuit Breaker fires and automated recovery fails.
Changes:
🧑💻 Emergency Interventionmanual override · emergency retraining · bypasses automated gatesemergency onlyThe inner loop (autonomous) and outer monitoring layer operate on completely different cadences. Counter-rotating visual motion conveys this structurally.
Directional convention:
Implying spin in a static diagram (dim-to-bright arrows):
Place 3–4 arrows along each ring, graduated in opacity in the direction of travel:
| Arrow in sequence | Opacity |
|---|---|
| 1st (trailing) | ~20% |
| 2nd | ~50% |
| 3rd | ~80% |
| 4th (leading) | 100% |
The eye reads brightening as momentum. Inner CW and outer CCW will read as counter-rotating without animation.
Add a small label near the outer arc: asynchronous oversight
draw.io supports native flow animation on connectors:
Export as animated GIF:
If animation proves unreliable, the dim-to-bright static approach (section 6) is the self-contained fallback and likely the more durable choice for longevity.
| Legend Entry | Action |
|---|---|
'Main' Loop: HITL (with Human in it) |
⬜ Update to 'Main' Loop: HOTL (closed-loop) |
Potential Bypass |
⬜ Relabel to Emergency Intervention (bypass) |
Automation Routing |
✅ Keep |
Automation Boundary |
✅ Keep |
'Sub' Loop: Iterative activities |
✅ Keep |
| AUTOMATION node | ✅ Keep |
| MODEL SERVICES | ✅ Keep |
| PRODUCT UI | ✅ Keep |
| DATA | ✅ Keep |
| MODEL TRAINING SERVICE | ✅ Keep |
Add to legend:
| # | Item | Priority |
|---|---|---|
| 1 | Bracket/arc connecting Human Monitor + Circuit Breaker, labeled HUMAN ON THE LOOP |
High |
| 2 | Observation lines from both monitoring nodes to inner loop nodes (read-only style) | High |
| 3 | Kill Switch sub-bullet added to Circuit Breaker | Medium |
| 4 | Developer Training → relabel Emergency Intervention, restyle border | Medium |
| 5 | Legend: HITL → HOTL label; Potential Bypass → Emergency Intervention | Medium |
| 6 | Dim-to-bright counter-rotation arrows on inner and outer rings | Low / Polish |
| 7 | asynchronous oversight label on outer arc |
Low / Polish |
| 8 | Animated GIF export experiment | Optional |