关键词: 数据可信流通；成熟度评估；ACCESS模型；指标体系

Abstract: Trusted data circulation is an important prerequisite for building a unified data market and holds significant importance for ensuring data supply availability, enabling smooth circulation, facilitating effective utilization, and guaranteeing data security. Currently, data circulation faces a complex landscape shaped by legal compliance requirements, the awakening of data awareness among market entities, innovation in digital intelligence technologies, and the superposition of multiple attributes of data. Traditional circulation models are inadequate to adapt to future large-scale data circulation scenarios. New technologies and solutions for trusted data circulation are continuously emerging. How to scientifically evaluate these new technologies and solutions has become an urgent issue. This paper systematically sorted out the practical dilemmas and development trends of trusted data circulation. It constructed a six-dimensional "ACCESS" evaluation model, with core dimensions including process auditability, circulation compliance, technical compatibility, trusted circulation efficiency, data security, and technical standardization. This model provides an analytical framework and practical guidance for promoting technological innovation and maturity assessment of trusted data circulation.

Key words: trusted data circulation; maturity assessment; access model; indicator system