DC词表的维护:实践、策略与模型

Dublin Core Metadata Initiative:Practices,Policies and Models By Thomas BAKER

DCMI维护着一个包含众多元数据术语的词表,其中最主要的是包括15个元素的都柏林核心。然而,DCMI 所关注和讨论的并不只是这个核心集,以及围绕这个核心集的实践、策略和模型,DC 元数据模型已经由最初的单一模型进化成一个完整的框架,可以通过这个框架对应用 DC 元数据的各种实践进行评估。这些术语及其以前的版本现在都由统一资源标识符(URI)来标识,并建立了网页和形式化的 schema 文档,在注册系统中被编成索引,在具体的应用纲要(application profiles)中被引用。DCMI 正在寻求一种简单易行的维护机制,一方面推荐使用不断变化和增长的核心标准,另一方面承认和重用其它的词表作为必要的补充,这两者之间需要建立一种平衡。

The Dublin Core Metadata Initiative (DCMI) maintains a vocabulary of several dozen metadata terms,most notably the fifteen-element Dublin Core.Within DCMI,however,discussion has focused more on the practices,policies,and models around Dublin Core.Its initial single- resource data model is evolving towards a fuller framework for evaluating the diversity of Dublin Core implementations. The metadata terms (and that of their historical versions) are identified with Uniform Resource Identifiers (URIs),documented on Web pages and in formal schemas,indexed in registries,and cited in applica- tion profiles.With low-overhead maintenance processes,DCMI seeks to balance the change and growth of Dublin Core standard against the recognition and use of other vocabularies as a complement.