Scalable Data Quality Index (DQI) for a Leading Travel Company

About Client:

The client is a global travel company operating a major international airline alongside multiple digital platforms for booking flights, hotels, vacation packages, and ground transportation. With millions of daily interactions across mobile apps, websites, call centers, and partner ecosystems, delivering consistent and personalized customer experiences is core to the business.

Background:

The client’s data ecosystem spans airline operational systems, online travel agency (OTA) platforms, CRM tools, and third-party partner APIs. To centralize insights, a cloud-based data lake was implemented. However, rapid growth in data volume, legacy systems, and inconsistent partner feeds introduced significant data quality issues. Over time, this reduced confidence in analytics and slowed downstream innovation.

To address this, the client required a scalable DQI framework supported by a centralized DQI dashboard to continuously measure and monitor data health across the pipeline.

Challenge:

The organization faced multiple data quality challenges that made consistent governance difficult:

  • Inconsistent data formats across the data lake due to conflicting schemas and naming conventions
  • Missing and incomplete data, especially for critical booking, passenger, and contact attributes
  • Duplicate records leading to fragmented customer views and distorted reporting
  • Delayed detection of issues, with quality problems surfacing late and impacting real-time use cases
  • Manual data fixes, consuming disproportionate data engineering effort
  • Lack of visibility, with no unified DQI dashboard to track trends, health scores, or root causes
  • Rigid rule management, where hard-coded checks limited adaptability to new data sources

Solution:

A scalable, low-code Data Quality Index (DQI) framework was implemented across the client’s hybrid data architecture, tightly integrated with existing tools and platforms.

  • Automated Data Discovery
    Incoming data from airline systems, hotel APIs, and booking platforms was automatically profiled to identify anomalies and inconsistencies feeding into the DQI.
  • Rule-Based Validation Driving the DQI
    Data quality rules were centrally defined and applied across pipeline stages:

    • Completeness: dbt flagged missing mandatory fields such as passenger ID and flight number
    • Validity: dbt validated formats and acceptable ranges, including dates and airport codes
    • Consistency: dbt standardized values across sources, such as country and currency codes
    • Uniqueness: dbt and Monte Carlo detected duplicate customer and booking records
    • Accuracy: Monte Carlo validated data against trusted reference sources and monitored freshness

  • These checks collectively contributed to measurable DQI scores at ingestion, transformation, and pre-load stages.
  • DQI Dashboard with Real-Time Monitoring and Alerts
    Monte Carlo was implemented as the core observability layer, powering a centralized DQI dashboard that provided real-time visibility into data health, trends, and incidents. Automated alerts were integrated with existing monitoring systems to notify relevant teams of critical DQI breaches.
  • Automated and Semi-Automated Remediation
    Common data quality issues—such as formatting errors, missing values, and quarantining—were resolved through automated workflows triggered by dbt or Monte Carlo failures. More complex issues were flagged and routed to data stewards with full lineage and incident context from the DQI dashboard.
  • Governance-Ready Architecture
    Metadata management, rule documentation via dbt, and end-to-end lineage were embedded to ensure compliance with GDPR and internal data governance policies.

Outcome:

  • Business users regained trust in data through continuous validation backed by a transparent DQI framework
  • Manual data correction effort dropped significantly, reducing costs and freeing engineering capacity
  • Early detection via the DQI dashboard reduced downstream latency and operational impact
  • Higher-quality data enabled stronger personalization, loyalty management, and customer service outcomes
  • A complete audit trail supported regulatory compliance and reporting transparency
  • Low-code design enabled rapid updates to DQI rules and easy scaling to new data sources
  • Real-time alerts shifted data quality management from reactive resolution to proactive prevention

 

Leave a Reply

Your email address will not be published. Required fields are marked *

BizAcuity
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.