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課堂測驗
FRAD的

1.概念模型的基礎原則2.權威資料的概念基礎

現在圖書館還是傾向控制詞彙，不太願意讓讀者使用自然語言，讓情況更混亂，來確定讀者在查閱資料時不會漏掉關鍵字
In  almost  all  large  bibliographic  databases,  authority  control  is  achieved  manually  or  semi-automatically  by  means  of  an  authority  file. 

受控檢索點是被編目規則(中國編目規則、AACR2)所控制，有主動或被動之分；有機構產生受控檢索點或實施編目規則。

The IFLA Study Group on the Functional Requirements for Bibliographic Records
(FRBR) developed a conceptual model showing the entities and relationships of the
bibliographic universe in 1997. The purpose of the FRBR model is to identify the
functional requirements of information in bibliographic records to facilitate the specified
user tasks.1 The basic entities of the FRBR model are the result of a logical analysis of
the data typically represented in bibliographic records. The entities are divided into three
groups:
Group 1 entities are defined as the products of intellectual or artistic endeavours that
are named or described in bibliographic records: work, expression, manifestation,
and item.
Group 2 entities are those responsible for the intellectual or artistic content, the
physical production and dissemination, or the custodianship of the Group 1 entities:
person, corporate body, and family2.
Group 3 entities represent an additional set of entities that serve as the subjects of
works: concept, object, event, and place.