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Serial Item and Contribution Identifier

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Serial Item and Contribution Identifier

The Serial Item and Contribution Identifier (SICI) is a code (ANSI/NISO standard Z39.56) used to uniquely identify specific volumes, articles or other identifiable parts of a periodical. It is "intended primarily for use by those members of the bibliographic community involved in the use or management of serial titles and their contributions".

Description

It is an extension of the International Standard Serial Number, which identifies an entire periodical (similar to the way an ISBN number identifies a specific book). The ISSN applies to the entire publication, however, including every volume ever printed, so this more specific identifier was developed by the Serials Industry Systems Advisory Committee (SISAC) to allow references to specific parts of a journal.

The variable-length, free of charge, code is compatible with other identifiers, such as DOI, PII and URN.[1][2] Prior to January 2009, SICIs were valid DOI suffixes for registration at the CrossRef registration agency. However, to accommodate a security problem with Microsoft's Internet Explorer, they decided that they would soon refuse to register DOI suffixes that contain the colon character.

The SICI is a recognized international standard and is in wide use by publishers and the bibliographic community, primarily as an aid to finding existing articles or issues.[3] JSTOR adopted SICIs in 2001 as its primary article-level identifier and the core of its stable and citation-derivable URLs. SICI was selected over simpler alternatives because of its ability to encompass the many varieties of journal metadata found in JSTOR's archive.[4] However, due to difficulties encountered by its partners in calculating the correct values for the title code and the check digit, JSTOR's implementation of the standard ignores those elements.[5][6]

Details

The SICI code is composed of three segments, intended to be both human-readable and easy for machines to parse automatically. The following example SICI is explained below:[7]

Item
Abstract from Lynch, Clifford A. "The Integrity of Digital Information; Mechanics and Definitional Issues." JASIS 45:10 (Dec. 1994) p. 737-44
SICI
0002-8231(199412)45:10<737:TIODIM>2.3.TX;2-M

Item segment

0002-8231
This is the ISSN for the periodical, in this case the Journal of the American Society for Information Science
(199412)
The chronology part is in parentheses and identifies the date of publication. In this case, it is signified by year and month; 1994 December
45
10
The enumeration part signifies the volume and number; Vol. 45, no. 10.

Contribution segment

<
Signifies the start of the contribution segment
737
Location code: signifies the page number, frame number, reel number, etc. In this case, page 737
TIODIM
Title code: based on the title of the article. In this case, an initialism: "The Integrity of Digital Information; Mechanics and Definitional Issues".
>
Signifies the end of the contribution segment

Control segment

2
Code Structure Identifier (CSI) for the type of SICI being constructed
3
Derivative Part Identifier (DPI) identifies a part of the contribution, such as a table of contents or abstract
TX
Format identifier two-letter code signifying the way content is presented. In this case, TX = printed text
2-
Standard version number
M
Check character allows a computer to detect errors in the code, similar to ISBN's check digit

Examples

Item
Bjorner, Susanne. "Who Are These Independent Information Brokers?" Bulletin of the American Society for Information Science, Feb-Mar. 1995, Vol. 21, no. 3, page 12
SICI
0095-4403(199502/03)21:3<12:WATIIB>2.0.TX;2-J

Information

To use as an info URI, the SICI is percent-encoded and prefixed.

INFO
info:sici/1046-8188(199501)13:1%3C69:FTTHBI%3E2.0.TX;2-4

URN

To use in a URN, the SICI is percent-encoded and prefixed.[8] For example, to create a URN for a specific article "From text to hypertext by indexing" in the journal ACM Transactions on Information Systems:

SICI
1046-8188(199501)13:1<69:FTTHBI>2.0.TX;2-4
URN
URN:SICI:1046-8188(199501)13:1%3C69:FTTHBI%3E2.0.TX;2-4

This could then be used to refer to the article inside an HTML citation (in the element), for instance, in a way that is superior to an HTTP link for documents that are not on the web or have transient URLs:[9]

A model is presented for converting a collection of documents to hypertext by means of indexing. The documents are assumed to be semistructured, i.e., their text is a hierarchy of parts, and some of the parts consist of natural language. The model is intended as a framework for specifying hypertextual reading capabilities for specific application areas and for developing new automated tools for the conversion of semistructured text to hypertext.

An internet draft proposal to officially register the SICI namespace for URNs with IANA was made in 2002, but is currently dormant.[10][11]

DOI

SICI codes can be used as the item ID in a DOI identifier.[12] In the following example, the number 10.1002 is the DOI's publisher ID, a slash acts as a separator, and the rest, which is publisher-specific, is the SICI code:

  • 10.1002/0002-8231(199601)47:1<23:TDOMII>2.0.TX;2-2

See also

  • The BICI is a draft with a very similar format and functionality, using an ISBN instead of an ISSN, used to identify components of a book.
  • ISSN
  • DOI
  • NISO
  • OpenURL - tries to solve similar problems like SICI

References

  1. ^ Morgan, Cliff. "The DOI (Digital Object Identifier)". Archived from the original on 2004-03-17. 
  2. ^ Paskin, Norman (September 1996). "Document identifiers: an update on current activities". ICSTI Forum (23). Archived from the original on 2002-11-18. 
  3. ^ "6. Evaluation of the Identification Schemes". Archived from the original on 2012-02-05. 
  4. ^ JSTOR and "Deep Linking" — No. 5, Issue 2, JSTORNEWS, June 2001
  5. ^ Koppel, Ted (July 2004). "The SICI Emerges, Cicada-Like, After Eight Years of Dormancy". Information Standards Quarterly 16 (3): 4. Retrieved 6 December 2014. 
  6. ^ The SICI Standard — JSTOR
  7. ^ What is the SICI? — Bibliographic Management Factfile — UKOLN
  8. ^ Using Existing Bibliographic Identifiers as Uniform Resource Names — RFC 2288
  9. ^ URNs, bibliographic citations in web authoring
  10. ^ Using Serial Item and Contribution Identifiers as Uniform Resource Names
  11. ^ URN NID Assignment Status
  12. ^ Unique Identifiers in a Digital World

External links

  • ANSI/NISO Z39.56 - Serial Item and Contribution Identifiers (SICI)
  • ANSI/NISO Z39.56-1996 (Version 2) — Serial Item and Contribution Identifier (SICI)
  • SICI and BICI: Identifiers for Serials and Books — PowerPoint document contains examples
  • Identifiers and Their Role In Networked Information Applications
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