Data Quality Assessment of Data Marketplaces’ Assets: Overview and FAME’s Approach

November 13, 2023

Data Quality Assessment of Data Marketplaces’ Assets: Overview and FAME’s Approach

In the world of data, quality reigns supreme. Data marketplaces are the beating heart of the modern data-driven economy, facilitating the exchange of information from a myriad of sources. In these bustling hubs, ensuring that the data on offer is of the highest quality is not just a priority—it’s the currency of trust, accuracy, and reliability.

Understanding Data Quality in Data Marketplaces

To appreciate the significance of data quality in data marketplaces, it’s important to provide a fundamental understanding of what data quality entails. In essence, data quality refers to the degree to which data meets the requirements and expectations of its users. When it comes to data marketplaces, high-quality data is not merely a desirable attribute; it’s essential, given that data marketplaces serve as platforms where individuals and organizations can buy, sell, or exchange data. These marketplaces host vast volumes of diverse data from a multitude of sources. For instance, in the case of the marketplace platform that is built in the context of the HEU FAME project diverse datasets from different data spaces, data marketplaces, and databases are federated within a single FAME platform to provide end-users with a single point of access to many different data assets. In this context, the quality of the data being traded in the FAME platform could directly impact the value and trustworthiness of the platform. This is the reason why a data quality assessment should be one of the essential functions of the FAME federated marketplace.

Data Quality Assessment

Data quality assessment is the cornerstone of ensuring that the data in a marketplace is reliable and fit for its intended purpose. Some key components of data quality assessment include:

  • Data Profiling: Data profiling involves the meticulous analysis and understanding of data. It delves into the data’s structure, content, and overall quality. By conducting data profiling, one can identify issues such as missing values, outliers, inconsistencies, and duplicates. Techniques like statistical analysis, pattern recognition, and data visualization are necessary to perform this task.
  • Data Cleansing: Data cleansing is the process of identifying and rectifying errors or inconsistencies in data. It often entails tasks like removing duplicates, standardizing formats, and filling in missing values. Automated tools and algorithms can significantly expedite the data cleansing process. Hence, they can ensure both efficiency and accuracy.
  • Data Validation: Data validation is the process of verifying the accuracy, completeness, and compliance of data with predefined rules or standards. It involves data verification, cross-referencing, and consistency checks to identify any discrepancies or anomalies.
  • Data Accuracy Assessment: Data accuracy assessment measures the reliability and correctness of data by comparing it with trusted sources or external datasets. Various statistical techniques, data sampling, and data matching algorithms can be employed to ensure accurate data assessment.
  • Data Quality Maintenance: Data quality does not end after carrying out data quality assessment and rectifying any issues with the data, as data quality maintenance is an ongoing process. Here are key elements of maintaining data quality:
    • Data Monitoring: Data monitoring involves the continuous observation and tracking of data quality metrics to identify deviations or trends over time. This proactive approach helps detect any anomalies, errors, or degradation in data quality promptly.
    • Data Governance: Data governance encompasses processes, policies, and guidelines for managing data quality throughout its lifecycle. It includes defining data quality standards, establishing data ownership, and implementing data management practices that ensure consistent quality.
    • Data Quality Metrics: Data quality metrics provide measurable indicators of data quality. These metrics can include completeness, accuracy, consistency, timeliness, uniqueness, and validity. Defining appropriate metrics enables tracking and quantifying the effectiveness of data quality efforts.

Best Practices for Data Quality Assessment and Maintenance in a Data Marketplace

Maintaining high-quality data in a marketplace is an ongoing commitment. Here are some best practices to consider and apply to delivery this commitment:

  • Implementing a Data Quality Framework: Establish a structured framework for data quality assessment and maintenance. This should incorporate standardized processes, tools, and techniques to maintain consistency and efficiency.
  • Collaborate with Data Providers (e.g., federated data providers of the FAME platform): Engage with data providers to establish clear expectations, requirements, and quality standards for the data being exchanged in the marketplace. A shared commitment to data quality with your data suppliers is essential.
  • Monitor Data Quality Regularly: Continuously track and monitor data quality metrics to ensure early detection and resolution of any issues. Consistency is key to maintaining data quality.
  • Employ Automated Data Quality Tools: It is important to leverage automated data quality tools and algorithms to streamline the assessment and maintenance processes. Automation saves time and significantly improves accuracy, making it a worthwhile investment.
  • Regularly Update Data Quality Standards: The field of data quality is ever-evolving. Stay updated with evolving data quality standards and best practices. Adapt and enhance data quality measures over time to keep your marketplace at the forefront of data integrity.

FAME’s Approach to Data Quality Assessment

In the scope of the FAME project, INNOV-ACTS has specified a data quality assessment framework for Industrial Internet of Things (IIoT) data.  The framework strives to provide quantitative methods to assess data quality, as we acknowledge that quantifying IIoT data quality and providing measures to improve is very critical for both operational efficiency and business value. Our framework facilitates both objective and subjective assessments considering parameters like the intended task for the data, while including data enhancement operations to address data quality issues. It also offers a standards-based and modular approach to data quality evaluation, which allows data owners and data market participants to make informed decisions about the quality and value of their data. We plan to integrate the framework to an IIoT architecture to support one of the industrial use cases of the FAME project, notably a use case that aims at assessing the quality of vast amounts of data assets for predictive maintenance in the oil industry, including raw data, labelled data, and machine learning models.

More information about our Data quality assessment and framework is available in our IEEE DCOSS 2023 paper, which is available through IEEE Xplore.