关键词: 数据质量, 公共基础数据库, 评估体系, 质量管理

Abstract:

[Purpose/Significance] As data become a strategic resource in the digital economy, its quality directly affects the efficiency of value creation and the effectiveness of public governance. However, with the continuous expansion of data scale and the deepening of application scenarios, pervasive quality issues - such as inconsistencies, errors, and redundancies - have emerged as a significant bottleneck restricting the release of data element potential. High-quality public data are particularly critical for empowering government decision-making and optimizing public services. Addressing the urgent practical need for high-quality data supply, this paper relies on the public basic databases (specifically the Population Database and Legal Entity Database) of a representative city to construct a scientific, systematic, and operable data quality assessment system. The study aims to diagnose existing quality defects in these foundational assets and provide theoretical support and actionable references for relevant departments to transition from passive data management to active quality governance. [Method/Process] To ensure the assessment is both scientifically rigorous and practically applicable, this study establishes a comprehensive evaluation framework based on domestic and international research, combined with the national standard GB/T 36344-2018 and local data characteristics. The framework comprises a hierarchical structure with 6 primary indicators (Normativity, Integrity, Consistency, Accuracy, Timeliness, and Accessibility), 17 secondary indicators, and 61 specific detection items. The study employs a dual-track assessment methodology integrating automated detection tools with manual verification. Automated SQL scripts and rule engines are utilized for the large-scale quantitative detection of intrinsic dimensions, while manual checks and interviews address contextual dimensions. This methodology was applied to conduct a multi-dimensional evaluation of 1 367 data items across 102 datasets in the city, ensuring a thorough analysis of the data status. [Results/Conclusions] The evaluation results indicate that while the overall construction of the city's public basic databases is positive, multidimensional quality issues persist. Specifically, the assessment revealed problems such as data coding errors, non-standardized classification, missing data items, missing or duplicate primary keys, inconsistent formats, the presence of illegal characters or outliers, and data delays or discontinuations. To address these challenges, the paper proposes four systematic improvement strategies: 1) To unify data standards and coding systems to ensure consistency across departments; 2) To construct a full-process quality control mechanism covering data collection, storage, and usage; 3) To strengthen technical platform support by implementing real-time monitoring and intelligent warning capabilities; and 4) To improve organizational synergy and institutional guarantees to solidify the management foundation. These measures are intended to optimize data supply quality and support the support the high-quality and sustainable development of the data element market.

Key words: data quality, public basic databases, assessment system, quality management