D8LooP - Practise Data Engineering

Preparing your workspaceloading the brief, studio & canvas…

buyersellerlistingorder

SCENARIO

You've joined LearnUp. A user can enroll, drop, and enroll again the following year. Product needs a learner's current state in one query — and the last completion-rate report was withdrawn, because the newest course came top purely because nobody in it had yet had time to fail to finish.

your model must answer

01The courses a user is currently enrolled in?
02Whether they completed a given course, and when?
03Completion rate by course, defined so a course launched last week isn't flattered?

out of scopePayments · certificates · quizzes · instructor tools · versioning

This exercise’s brief could not be loaded.The guided questions and their model answers come from the review service. It looks like it is not reachable — start it with pnpm dev:api and reload.The canvas below still works, so you can model now and run the review once the service is up.

Build starts here

The brief becomes the left drawer. The canvas stays the build surface.Study is done above. Build the tables here, hit review to validate, then use follow-ups to defend the model.

Practice studio

Ctrl/Cmd + C copyCtrl/Cmd + V pasteCtrl/Cmd + Z undoDelete remove

Start with the data model, then layer system context

Use entities and relationships for the real ERD. Add notes, containers, or curated cloud shapes only when they sharpen the story you are architecting.

68%

You built the model in the Studio. Now defend it.Enrollment state and honest completion rates

Design review

The reviewer reads your model.

Preparing your workspaceloading the brief, studio & canvas…

buyersellerlistingorder

SCENARIO

your model must answer

01The courses a user is currently enrolled in?
02Whether they completed a given course, and when?
03Completion rate by course, defined so a course launched last week isn't flattered?

out of scopePayments · certificates · quizzes · instructor tools · versioning

Build starts here

The brief becomes the left drawer. The canvas stays the build surface.Study is done above. Build the tables here, hit review to validate, then use follow-ups to defend the model.

Practice studio

Ctrl/Cmd + C copyCtrl/Cmd + V pasteCtrl/Cmd + Z undoDelete remove

Start with the data model, then layer system context

Use entities and relationships for the real ERD. Add notes, containers, or curated cloud shapes only when they sharpen the story you are architecting.

68%

You built the model in the Studio. Now defend it.Enrollment state and honest completion rates

Design review