National Diet Library Digital Archive Portal - PORTA - Gateway to digital information in Japan April 3, 2008 Hideki Takeuchi Planning Division, Administrative Department National Diet Library, Japan

2 1. What is PORTA?

3 1. What is PORTA? Comprehensive portal site for navigating users to digital information Released in October 2007 PORTA - the short name for the NDL Digital Archive Portal Gateway to digital information in Japan English version opened March 31, 2008

4 1. What is PORTA? Day-to-day information seeking behavior… is it enough to use only search engines? PORTA can search information from deep Web contents Access to primary and other information in each digital archive! Search for several digital archives at one time … Surface Web Deep Web Contents of Archive A Contents of Archive B Archive A Archive B Search

5 2. List of searchable archives 25 types of digital archives with 10 million data 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 - Catalog (Japanese Books & Magazines) - Japanese Periodicals Index (from 2003) - 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 - Selections from the digital archive of the Akita Prefectural Library - Index from collections of the Akita Prefectural Library - Asian Historical Records Database - National Archives of Japan Digital Archive - Shinsho Map - Digital Okayama Encyclopedia - List of digital archive sites of Governments - Kyoto University Research Information Repository - The Japan P.E.N. Club Digital Library - Agriculture, Forestry and Fisheries Research Information Center Union Catalog - HERMES-IR(Special Collections)

6 3. Outline of functions 3-1. Search functions - Keyword search - Associative search - Classification search - Dictionary search 3-2. Other convenient functions - New / updated contents, Rankings - Personalization function

Search functions Search the metadata assigned to each content Use two types of search method - search database compiled by harvested metadata in advance - cross-search by accessing contents directly through the network on request

Keyword Search Simple search - Search without identifying search item Advanced search - Keyword search by identifying titles, creators, classifications, etc.

Keyword Search From search to view contents Top page - - Simple search 1. Keyword entry 2. Search

Keyword Search From search to view contents Search results 3. Select

Keyword Search From search to view contents 3. Select 4. To contents Detailed search results

Keyword Search From search to view contents 3. Select Detailed search results 5. Links to related contents To location information To online bookstore To website search

Other search functions Associative search - Search method using keywords having a high association with phrases and natural language - Useful to seek information related broadly to a theme instead of narrowing down the search by keywords Classification search - Search by following NDC, NDLC

Other search functions Dictionary search - Search with dictionary data (NDL authority files) whose search results are graphically displayed

Other search functions Search Support by dictionaries Search results Jump to search results in Wikipedia OR search by the selected words is available

New/updated contents, Ranking Top ten latest added or updated contents Access ranking Keyword ranking

Personalization function After registration, you can change the settings to suit your preference and needs. User group options - five options - search objects and classification are preset Design options

Personalization function Default settings for search options - Refined search conditions of search objects and classification and others can be saved Direct menu editing function - Menu items can be selected and added to the Direct Menu

Personalization function Bookmark function - Favorite data with your comments can be saved - A kind of social bookmark - Knowledge sharing in digital contents by participation of users

20 4. Cooperation with PORTA To be searchable by PORTA : Guideline - Implement common specifications and guidelines for system cooperation - Metadata element set for harvesting and cross- search - Communications protocols

21 4. Cooperation with PORTA Use of the interface provided by PORTA - To have outside systems utilize the search function of PORTA, it provides an API (Application Program Interface) - Released API : SRW, OpenSearch, OpenURL, Z OAI-PMH API for data harvesting are planned to release

22 4. Cooperation with PORTA Use of the interface provided by PORTA PORTA Search functions PORTA Search functions Using externally supplied interfaces (SRW etc.) Searchable digital archives Searchable digital archives PORTA users Users of other websites Other systems, websites, etc. Providing with value- added services

23 5. PORTA in the future To build a national digital collection… - NDL Digital Archiving System for long-term preservation and access to digital information - Will be Launched in FY PORTA will cooperate with NDL Digital Archiving System to facilitate access to digital information - improve functions and increase the searchable contents - expand cross-sectoral cooperation!

24 5. PORTA in the future Internet NDL- OPAC Archive of websites WARP Archive of works Sending Archives of Public and private sector Archives of libraries - Integrated search - Jump to various contents Navigation to sources of information Regions Cultures Corporations Academic Government agencies NDL Digital Archive Digital Archive Organization Knowledge Database Knowledge of materials Digital Archive Portal Offices Homes Schools Dnavi Digitized contents (Digital Library from the Meiji Era, Rare Books Image Database, etc.) Digitization Registration and preservation Online periodicals and books Archives of various institutions Websites of Japan

25 Thank you for your kind attention.