Unverified50% confidenceFactExact time
语义元数据是指描述数据业务含义、计算逻辑和上下文关系的结构化信息，区别于仅描述数据存储格式的技术元数据
1
Sources
50%
Confidence
Long-term
Relevance
7/19/2026
First Seen
Sources
Apache Ossie：打破语义孤岛的开放元数据交换标准
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