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Package, CI-gate & observe a P5 model

P43.production-on-ml.01 · Audience: guest, it-ml, language-pro · Prerequisites: Applied Case — The Honest Tabular Model, End to End, Pipelines as code & quality gates, Metrics & the three-pillars model

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A trained model is not yet a product: until it is packaged, quality-gated and observable, nobody can install it, trust a new version of it, or watch it serve. This cross-discipline capstone closes that gap — you take a tabular model trained in the Data Science pillar (P5) and apply the whole Production Engineering discipline to it, end to end, proving the P35 → P36 → P37 skills transfer to a real artefact from another discipline. Everything runs in Pyodide, the Python that executes inside your browser: the model is given (a deterministic stand-in for a fitted pipeline), and the CI and request-pipeline simulators are inlined in the exercises, so you engineer the model without a server-side kernel.

Step 1 / 4 — The artefact you're handed
ⓘ Concept: Engineer the model, don't rebuild it
You're handed a fitted P5 model as a given artefact (a deterministic predict here). The modelling is P5's job; your job is to make it shippable — packaged, gated, observable — the same production discipline you built for a library, now applied to a model.

Why it matters — Most production ML work is the engineering around a model, not the modelling — so the model is given, and the discipline is everything that makes it shippable and observable.

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🎓 Practice ladder

4 graded rungs · ~90 min

Package the model, gate it in CI on a quality floor, make its serving observable, then assemble a production-ready model service in the capstone project.

Rung 1 — package the model (P35)

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Rung 2 — CI-gate the model (P36)

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Rung 3 — observe the model in serving (P37)

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Rung 4 — capstone: a production-ready model service (project)

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That's the discipline's flagship transfer task: a Data Science model, engineered like production Python — packaged, gated, observed, and resilient.

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Package, CI-gate & observe a P5 model — TransformerLab