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Data / Analytics·2024

Enterprise Data Quality Analysis

Enterprise Data Quality Analysis

Brief

Six-dimension data quality framework on Snowflake and Collibra (NDA).

Confidential client · Anonymized case study.

An enterprise data quality initiative focused on maintaining data integrity by generating analyzed reports and enforcing quality rules across large-scale operational datasets. The project served a major global corporation under strict confidentiality.

Problem

Large enterprise datasets suffer from issues with accuracy, completeness, consistency, timeliness, validity, and uniqueness. The team needed automated data-quality rules, analysis pipelines, and reporting to detect and prevent bad data before it propagated downstream.

Features

Six-dimension data quality assessment: accuracy, completeness, consistency, timeliness, validity, uniqueness
Fuzzy matching and data cleaning using FuzzyWuzzy and Pandas
SQL-based data quality rules (primarily JOIN queries) for ongoing data validation
Collibra integration for governance, pattern discovery, and rule deployment
Snowflake-based data access, profiling, and DQ report generation

Outcome

SQL quality rules deployed

0

Data completeness improvement

0

Duplicate record reduction

0

Growth signal

Figures animate in as you scroll — pulled from this project's published results.

  • Established a repeatable data quality framework for enterprise datasets
  • Improved data accuracy and completeness through automated rules and cleaning
  • Enabled governance stakeholders to monitor and enforce data standards via Collibra

Challenges & solutions

  • Duplicate and near-duplicate records → FuzzyWuzzy-based fuzzy matching and deduplication pipelines
  • Rule scalability across datasets → Modular SQL JOIN-based DQ rules deployed via Collibra
  • Pattern discovery at scale → Snowflake profiling combined with Collibra governance workflows
  • Multi-dimensional quality checks → Structured framework covering all six DQ dimensions