The following shows how to operate (especially, how to search) and each screen display.

1. Search from front page

There are three ways to search for authority data as shown in Figure 1, i.e.1-1. Search by Keyword,1-2. Search by Classification Numbers and1-3. Search by Identifier.

Figure 1: Web NDL Authorities Front Page (Keyword Search) Screen

1-1. Search by Keyword

Click the “by keyword” tab shown in 1-1 to enter the search keyword in the input field and start searching.
Users may select the “All”, “Name”, or “Topical Name”, or “Genre/Form Term” radio button beneath the input field. After selecting “Name”, users can search by Personal Name, Family Name, Corporate Body Name, Geographic Name, Uniform Title and Work. After selecting “Topical Name”, users can search by Topical Term and Subdivision. After selecting Genre/Form Term, users can search by Genre/Form Term.

1-1-1. Search Object

Search objects include Names/Titles, Variant Names/Titles as well as katakana form and romanized form of them.
If you search for personal names and cannot find any results, be sure to insert a space between the family name and given name, especially for names with three or more words.
Search results are affected by spaces between words. If your search does not find any items of interest by using katakana form or romanized form, be sure to separate each word with a space.

Example(ID: 00054222):Name/Title “夏目, 漱石, 1867-1916 (ナツメ, ソウセキ, 1867-1916)”

Example (ID: 00440510):Name/Title “García Márquez, Gabriel, 1927-2014”Variant Name(s) / Title(s) “ガルシア・マルケス, ガブリエル”

1-1-2. Normalization of Characters

Characters shown below are normalized and are considered identical in searches. Thus, a user may input either form and get the same search results.

• Hiragana/Katakana, Alphabet (Upper/Lower cases, Full-/Half- width), Numbers (Full-/Half- width), Basic Latin/Extended Latin
• Upper case “ツ”, “ヤ”, “ユ”, “ヨ”, “ア”, “イ”, “ウ”, “エ”, “オ”, “ワ” and lower case “ッ”, “ャ”, “ュ”, “ョ”, “ァ”, “ィ”, “ゥ”, “ェ”, “ォ”, “ヮ” are recognized as the same letter (same for hiragana).
  Examples:
  Searching for “ギリシャ” also finds “ギリシヤ”.
  Searching for “カッテ” also finds “カツテ”.
• Voiced sound mark (゛)/ Semi-voiced sound mark (゜)/No voiced sound mark・No semi-voiced sound mark
  Example:
  Searching for “パリ” finds both “パリ” and “バリ”.
• “ヴァ”, “ヴィ”, “ヴ”, “ヴェ”, “ヴォ” / “バ”, “ビ”, “ブ”, “ベ”, “ボ”
  Example:
  Searching for “ヴァイオリン” also finds “バイオリン”.
• Variants of Kanji
  Example:
  Searching for “渡辺” finds “渡邉” and “渡邊” as well.

The following codes are not recognized.

• Half-width apostrophes (‘), plus signs (+), periods (.), grave accents (｀), or hyphens (-)

All half-width and full-width punctuations or symbols other than the above are handled as spaces. An AND search is conducted for character strings before and after a space.

Example(ID: 00276855):Name/Title “AT&Tベル研究所”

Example (ID: 034358228):Name/Title “装束--保存・修復”

1-1-3. Prefix Search

Adding either a half-width asterisk (*) or full-width asterisk (＊) to the end of a search string conducts a prefix search.

Example: Searching for “日本歴史＊” finds the Names/Titles that start with “日本歴史”, including “日本歴史学会” and “日本–歴史–1945–1952”.

1-1-4. Restriction

Due to system restrictions, a keyword that contains only a single kanji in combination with other characters will often fail to find meaningful hits from the authority data.

Examples: Searching for “さいたま市” does not find “さいたま市立中央図書館”, because the search index contains “さいたま” and “市立” as separate words.
Alternatively, searching for “さいたま” or “さいたま市立” does find “さいたま市立中央図書館”.

1-2. Search by Classification Numbers

The Classification Number Search allows users to search for authority data for Geographic Name, Uniform Title, Work, and Topical Term by representative classification numbers from the Nippon Decimal Classification (NDC) 9th Revised Edition, NDC 10th Revised Edition orthe National Diet Library Classification (NDLC), which are assigned to the authority data. Users can choose either from a dropdown list ((a) in Figure 2) to search. In addition to searching for exact matches, users can do a prefix search by adding either a half-width asterisk (*) or full-width asterisk (＊) at the end of the search string.

Example: Searching for ME352 will find Names/Titles with a representative classification of ME352, such as “阿賀川”, etc.

Example: Searching for ME* will find Names/Titles with a representative classification that starts with ME, such as “雨” (representative classification of ME129) or “阿賀川” (representative classification of ME352).

Users may select “All”, “Name”, or “Topical Name”, or “Genre/Form Term” radio button in the search window ((b) in Figure 2.). Users can search Geographic Name, Uniform Title and Work by selecting the “Name” button, and can search Topical Term by selecting the “Topical Name” button. However, the Classification Number is not added to Genre/Form Term, so users cannot search Genre/Form Term by representative classification numbers.

To the head of this page

1-3. Search by Identifier

With Identifier Search, you can search authority data not only by National Diet Library (NDL)’s authority IDs, but also by identifiers from external databases that are displayed as related links onDetailed Information Screen.

Enter an identifier in the search box, then select the corresponding identifier type or issuing organization from the drop-down list on the right before starting the search.

The system will retrieve authority data that contains the selected identifier value. Please note that if the identifier type or issuing organization of the entered identifier does not match the value selected in the drop-down list, the search will not return any results.

Searches are performed using exact matching; however, spaces entered in the search term are ignored. In addition, for ISNI and ORCID, you can obtain the same results whether you enter half-width hyphens between every group of four digits or do not enter any hyphens at all.

The identifiers available for searching are listed in Table 1 below.

2. Search Result Screen

2-1. Search Result List Screen

Results of search are displayed in a list, as shown in Figure 4 below. The screen comprises the following parts: (a) Search conditions, (b) Search refinement (Type of Authority), (c) Page feed, (d) Records per page and (e) Search results. The description of each part is as follows.

Authorized Heading                Type of Authority創作者: Creator(s)家族構成員: Member(s) of Family→: Related Name(s) (Another Name), Related Work(s)← Variant Name(s) / Title(s)

2-2. Detailed Information Screen

This shows detailed individual authority data from search results. This screen is divided into 4 parts as shown in Figure 5: (a) Detailed Information of the authority data, (b) Thesaurus Map, (c) Search Box, and (d) Search bibliographic data via NDL Search. The description of each part is as follows.

2-2(a). Detailed Information of the authority data

Data items shown in the Detailed Information tab are shown below. Each item is explained in the following table.

2-2(b). Thesaurus Map

When the authority data being displayed in Detailed Information includes Broader Terms, Narrower Terms, or Related Terms, Thesaurus Map is shown. In this Map, the Current Term (i.e., the Term whose Detailed Information is being displayed) is at the center, with connections to other Terms represented as follows: Broader Terms are connected with solid arrows, Narrower Terms with dashed arrows, and Related Terms with dotted arrows. If Broader or Narrower Terms themselves have additional Broader or Narrower Terms, those are connected and displayed as well; however, when it comes to Related Terms, only terms related to the Current Term are displayed.

At the top left of the Thesaurus Map display, the number of displayed Terms and depth is indicated as “Total xxx nodes (depth n).” If more than 100 terms are included, only the depth up to the 100th Term are shown, and the top left will display a message such as “Total xxx nodes (depth n), of which displaying yyy (depth m) (Show all).” Clicking the “Show all” link will display all Broader and Narrower Terms, although this may take some time.

C licking on a term within the Map will navigate to the Detailed Information page for that term.

To the head of this page