資源描述與檢索：RDA與AACR2、MARC21相關議題初探

Resources Description and Access: RDA Related Issues with AACR2 and MARC21

近年資源組織領域中最重要的議題為資源描述與檢索（RDA），本文首先綜論RDA的發展演進、立論根據及基本架構，其次說明RDA與AACR2在整體編排、著錄規則、實質內涵上的差異；之後討論RDA中檢索點的相關原則，較之AACR2可更實際的應用於權威控制；最後詳述LC為因應RDA在MARC21所做的支援與修訂，包括為書目及權威紀錄格式增訂欄位、分欄、指標、代碼及著錄詞彙等。主要結論與建議為：RDA的影響層面涵蓋圖資界的基礎核心到資訊應用，值此關鍵時刻，除應持續關注國際上相關議題（含機讀格式）的發展外，亦應重新思考國內如何因應，包括中文編目規範及實務的調整、中文題名權威檔的建立、關係用語中文化等，此外應給予編目單位足夠支援，並與系統人員共同與時俱進。

This paper starts with a brief introduction of RDA, including its development, foundation and basic structure, followed by comparing the differences between RDA and AACR2 in terms of structure, contents and details of bibliographical description, including vocabularies, elements, relationship designators, replacement of GMD, transcription, etc. One of the issues discussed is the importance of applying the access point concepts in RDA into authority control. To support the implementation of the new cataloging standard, LC has revised MARC 21 for bibliographic format as well as for authority format by adding tags, subfields, indicators, codes and terms.Conclusions and suggestions are: the development of RDA will have impact not only on the core services provided by libraries but also on the application of information technology; library communities in Taiwan should follow up the global development of related issues; it is necessary to rethink how to apply RDA concepts into practice on Chinese cataloging standards and cataloging itself, building Chinese title authority database, translating vocabularies, terms and relationship designators into Chinese; libraries should collaborate with information technology communities to adapt RDA for describing and accessing resources in the future.