National Diet Library Newsletter
No. 158, December 2007
NDL Digital Archive Portal "PORTA"
started full scale operation
The NDL Digital Archive Portal "PORTA" is a comprehensive portal site which navigates users to a vast repository of Japanese digital information resources and services providing such resources. Since October 15, 2007, PORTA has started a fully-fledged service after examining its prototype system.
Searchable archives
PORTA guides you in an integrated fashion to 20 types of digital archives with 8 million data (as of October 2007) of other cooperating institutions as well as the National Diet Library (NDL) digital archives.
NDL digital archives
- Rare Books Image Database ●
- Digital Library from the Meiji Era ●
- Digital Library of Children's Literature ●
- Samples from the Rare Books Image ●
- NDL Catalog (Japanese Books & Magazines) ○
- NDL Japanese Periodicals Index (from 2003) ○
- NDL Catalog of the Gordon W. Prange Collection (Magazines & Newspapers) ○
- Union Catalog Database of Children's Literature ○
- Database Navigation Service (Dnavi) □
- Web Archiving Project (WARP) □
- Current Awareness ☆
- Collaborative Reference Database ☆
Digital archives of cooperating institutions
- Aozora Bunko [Aozora Bunko] ●
- Selections from the digital archive of the Akita Prefectural Library [Akita Prefectural Library] ●
- Index from collections of the Akita Prefectural Library [Akita Prefectural Library] ○
- Asian Historical Records Database [Japan Center for Asian Historical Records] ●
- National Archives of Japan Digital Archive [National Archives of Japan] ●○
- Shinsho Map [Association Press] ☆
- Digital Okayama Encyclopedia [Okayama Prefectural Library] ●☆
- Digital archives of governments [Cabinet Secretariat] □
●…texts, digital images, etc.
○…catalogs, indexes, etc.
□…websites
☆…tools for research and reference information
Functions
[Search function]
Simple Search: Search without identifying search item
Advanced Search: Keyword search by identifying titles, creators, classifications, etc.
Associative Search: Search method using keywords having a high association with phases and natural language
Classification Search: Search by following NDC (Nippon Decimal Classification) and NDLC (National Diet Library Classification)
[Accessory function]
Dictionary Search: Search with dictionary data
(NDL authority files) whose search results are graphically displayed
Search Support by Dictionaries: Display
search results of dictionary data and links to the Wikipedia when searching by
keywords
Links to Related Information: Search related websites etc. from search results
For more details, go to PORTA or read its booklet (PDF 1.91MB).
