ISO 13119:2012 健康情報学—臨床知識リソース—メタデータ | ページ 6

3.1 目的と形式

ナレッジ リソースのメタデータは、ドキュメントの目的には必須ではないが、次のような他の目的には重要な情報を伝達します。

• 主題、適用範囲、プレゼンテーションの形式などに応じて知識リソースを見つける。
• 知識の質を評価する。例えば、それがどれくらい古いか、著者がどれほど信頼できるかなど。

3 Introduction to metadata

3.2 Sources of generally useful metadata elements

General metadata have been developed by an initiative from library science known as the Dublin Core Metadata, adopted and published as ISO 15836:2009.

3.3 Sources of medical metadata

In the development of this International Standard, several sets of metadata particularly relevant for clinical knowledge were used as input and/or inspiration, including Arden syntax and ISO 13606-3.

3.4 Characteristics of the metadata element set

In the element descriptions in 4.2 to 4.6, each element has a descriptive label intended to convey a common understanding of the element, as well as a unique, machine-understandable, single-word name intended to make the syntactic specification of elements simpler for encoding schemes.

Although some environments, such as HTML, are not case-sensitive, recommended practice is to always adhere to the case conventions in the element names given to avoid conflicts in the event that the metadata are subsequently extracted or converted to a case-sensitive environment, such as XML (Extensible Markup Language).

Each element is optional and repeatable. Metadata elements may appear in any order. The ordering of multiple occurrences of the same element (e.g. Creator) may have a significance intended by the provider, but ordering is not guaranteed to be preserved in every system.

To promote global interoperability, a number of the element descriptions suggest a controlled vocabulary for the respective element values. The Dublin Core set assumes that different domains develop, where necessary, controlled vocabularies as specifiers of the content of the general purpose Dublin Core metadata element set and adds other metadata elements as required by the domain. This International Standard is a specialization for the medical knowledge domain.

The Dublin Core initiative is providing valuable informative material concerning the use of metadata and system implementation advice.

Bibliography