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Data Overview

Status: Draft

What this page covers

This page documents data sources, sheet-level purpose, field definitions at a high level, and initial assumptions before cleaning or metric derivation.

Source Inventory

  • Sheet list and business role
  • Data grain per sheet (student, enrollment, feedback, etc.)
  • Time coverage and refresh assumptions

Initial Data Quality Snapshot

  • Null profile by key columns
  • Duplicate key checks
  • Format and type consistency scan

Dataset Context

This dataset was provided as part of a Data Analyst practical assessment. It simulates an online education platform with course, enrollment, pricing, and feedback data across multiple months.

Although synthetic, it is structured to reflect realistic business patterns and must be treated as production-level data.

Checklist

  • [ ] Add exact dataset receipt date/version
  • [ ] Add row/column counts per sheet
  • [ ] Add key-join strategy across sheets

Placeholders

Screenshot Placeholder

Insert screenshot of raw workbook structure (tabs and headers).

Table Placeholder

Insert source inventory table with owner, grain, and key columns.

Chart Placeholder

Insert chart showing record volume by sheet.

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