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CodeSignal

Data Quality Foundations

via CodeSignal

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Overview

You will learn why data quality matters and how it affects the reliability of insights, recommendations, AI outputs, automation, compliance, and business decisions. You will also learn the most important data quality metrics and how to connect each metric to real business risks.

Syllabus

  • Unit 1: Why Data Quality Matters
    • Data Quality Risk Practice
    • Match Data Issues To Outcomes
    • Is This Data Ready?
  • Unit 2: Asking Business Questions
    • Match Questions To Datasets
    • Finding Missing Fields
    • Finding Irrelevant Fields
  • Unit 3: Core Data Quality Metrics
    • Match Data Quality Metrics
    • Spotting Data Quality Metrics
    • Match Data Quality Scenarios
  • Unit 4: Trusting Your Data
    • Comparing Decision Risk
    • Match Decisions To Quality Checks
    • Data Quality Decisions

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