ONLINE, July 2001
Copyright © 2001 Information Today, Inc.
|When it comes to containing the electronic journals, there are only a handful of databases with substantial coverage.|
electronic journals(without synonyms like ejournals or electronic periodicals) gives a snapshot of the ten databases on Dialog that have the best coverage of the topic. Limited to articles published in 2000, Gale's Trade & Industry database added 352 records, LISA 291, Gale Magazine Database 194, UMI Periodicals Abstract and Full-Text 171, Information Science Abstracts 128, ABI/INFORM 88, and Library Literature 84. Even limiting the search to the title field, guaranteeing that the focus of the article is electronic journals, and evening out the advantage that full-text databases have over abstract-only databases, brings up an impressive number of records.
There's a big difference between covering the topic and including the journals themselves in the databases. When it comes to containing the electronic journals, there are only a handful of databases with substantial coverage. H.W. Wilson and INSPEC were the first to recognize the importance of the most important library and information science (LIS) digital journals. ERIC was next, although with only three titles. ERIC, however, deserves credit for the most comprehensive coverage of the pioneering ejournal, PACS-R, the Public Access Computer Systems Review. LISA came a little late in 1999, although with a good selection of 16 ejournals. PAIS picked four outstanding LIS ejournals at about the same time. Information Science Abstracts (ISA) waited the longest. It was late January 2001 when it started to offer records for eight ejournals in its Dialog version. Those records first appeared in the third week of March on SilverPlatter. However, the SilverPlatter version was worth the wait for it offered a far better implementation from the perspective of ejournals than Dialog. On the various systems, the postings may be different depending on the latest update of the database. I used the postings information from Dialog.
|Surprisingly, some of the databases that have good coverage of library and information science don't cover LIS digital journals at all.|
Even with this limitation, there would have been about 25 qualifying LIS electronic journals. I chose ten of these that have the widest coverage in six databases with LIS coverage.
The ERIC database deserves special mention for two reasons. It is available free of charge on the Web with appealing software, and it is the only bibliographic database source that covers PACS-R: Public Access Computer Systems Review back to 1992. PACS-R is the brainchild of Charles W. Bailey at the University of Houston, who set the model for so many innovative electronic resources for librarians. PACS-R was the first electronic library and information science journal, launched in 1990 as an email service. Many of those early pieces are still relevant, such as the one describing the search engine that searches SGML-encoded documents. As Walt Crawford points out (http://www.lita.org/ital/1903_editorial.html), "the PACS Reviewa refereed electronic journal, free to readers and run by volunteersÉadded substantially to the literature of library automation in the 1990s." Another LIS electronic journal (among the top ten examined here) that is covered by ERIC is the excellent ACRL publication: Issues in Science & Technology Librarianship, edited at the University of California, Santa Barbara. It deserves mention that ERIC covers the now-defunct Review of Information Science to the same extent as INSPEC (12 records). Strange, however, is its treatment of D-Lib Magazine. All the articles in an issue are lumped together into one ERIC record.
Among the ten journals in this study, INSPEC covers only five, but these are the best ones, in my opinion. It has the most comprehensive coverage of the top-notch electronic LIS journal, First Monday, which is dedicated to Internet issues and boasts an excellent editorial team that comes through in its content. Although not listed among the top ten LIS electronic journals in my table, INSPEC also covers Information Technology and Disabilities, the IATUL Proceedings, and the Journal of Artificial Intelligence Research. Generally, INSPEC has the most informative abstracts, and only Library Literature matches its accuracy and consistency. It would further enhance its appeal if it covered some of the other top ten journals. Because of its essential coverage of electric and electronic engineering, and its availability through a large number of online services, INSPEC is one of the most popular databases in general, and the most widely accessible among the online services.
ISA should have deeper coverage of First Monday since it is dedicated to Internet issues and practically all its articles are relevant for the purported prime subjects of ISA. The same applies to JILT: Journal of Information, Law and Technologypublished by the University of Warwickwhich has many articles about the legal aspects of information technology, that are highly relevant in spite of the pan-European emphasis. I have doubts about the overall relevance of non-US journals that ISA still covers completelyJILT certainly deserves better coverage.
Its inclusion of Information Research is applauded. It is the only database beyond LISA that covers this superior electronic LIS journal edited by Tom Wilson of the library school of Sheffield University, one of the British pioneers of electronic journal publishing. The inclusion of electronic journals, however, may have been too taxing for Dialog, as once again the database was royally messed up. When I wanted to double-check my results on April 1, I found that thousands of records were empty, displaying nothing more than the copyright statement of the database in response to a full-format display command. It was a bad joke even on April's Fool Day, but it has now been fixed.
Often LISA is the only source for both active and defunct LIS electronic journals that deserve coverage, irrespective of their status. To the credit of LISA, it is the only database that includes records, although only for four articles from a single issue of the Katharine Sharp Review (consistently misspelled), a journal that was written by LIS students. Unfortunately, it ceased publication after five years, but many of the papers deserve record in more LIS databases, such as the excellent last article about the crisis in scholarly publishing and the role of the academic library (http://www.lis.uiuc.edu/review/8/tinerella.html).
It is also the only database that has a full coverage of Exploit Interactive, the electronic LIS journal of the EEC that discusses issues that do not know borders, such as measuring Web performance or personalized library interfaces. The journal was a by-product of European digital information projects and ceased publication in accordance with the original plan. It is nice to have the complete coverage of this very useful electronic resource. Although the coverage of another electronic journal, the ICSTI Forum of the International Council for Scientific and Technical Information goes back only to 1999, it is yet another valuable sourceLISA is the sole database to cover it.
The most significant limitation of Library Literature is that is does not have abstracts, and is likely to remain the only database in the Wilson database family without abstracts. Of course, this is reflected in its low price of $2.40 DialUnit. True, it has an index plus the full-text version on its own Internet site (http://www.hwwilson.com) with the slightly different database name of Library Literature & Information Science, but that does not compensate for the lack of abstracts. The 106 journals (there are 299 titles in the indexed version) that are in full-text do not include electronic journals (because they are freely available online).
This is certainly not the case with regard to electronic journals. Some of these databases are available on several online hosts, and offer good examples of how they handle unique content, particularly the URL of the item described. Dialog and SilverPlatter offer the most databases relevant for electronic LIS journals, fol- lowed by OCLC. (CSA has a version not only for LISA, but also for ERIC and PAIS but these were not included in the test.)
For articles in electronic journals, the most distinctive feature of the bibliographic record is the inclusion of the URL of the item (article) being described by the record. The purpose of this is to allow the user to quickly locate the item. If the URL is hotlinked, then it takes just a matter of seconds to display the source item. This may not work if a user id and password are needed for logging into the site of the electronic journal, even when it's a free site. Additional URLs may be included to locate the site of the journal, the publisher, and/or the author. These are not essential, as the user can easily figure these out from the source item. Their inclusion increases the chance for dead links and can cause more frustration than benefit.
This is just the tip of the iceberg of idiosyncrasies. With a few exceptions, there is no consistent pattern regarding the inclusion and hotlinking of the URL of the item described. For example, ERIC has no hotlinks for either of its free versions. They are present, however, in the Ovid and SilverPlatter implementations, and OCLC is inconsistent. INSPEC records on Ovid and SilverPlatter lack URLs for the source items, although URLs of the sited referred to in the documents were. ISA has no hotlinks on Dialog (a Dialog failing), but it does on SilverPlatter. On Cambridge Scientific Abstracts, LISA has hotlinks, but they were cold in SilverPlatterunusual, since SilverPlatter has the capability to turn cold links to hot onesand several records found on CSA were missing from the file on SilverPlatter. Although the links are not even included for Library Literature & Information Science on the Wilson Web site, they are both present and hot with OCLC's implementation.
The Table is electronically available on my Web site (http://www2.hawaii.edu/~jacso/extra). This offers two advantages over the print version. Each variation that has a code in the cell has a corresponding screenshot of the record. Clicking on the code will pop up the screenshot made of the record content. In a case where no record is found, the screen of the search result is linked to the "nr" code. Even the print version of the Table illustrates clearly the unpredictability and inconsistency in providing URLs for articles in electronic journals.
For a starter, it is baffling why there are no records in the OCLC version of PAIS for articles in the D-Lib Magazine and JEP when the other versions of PAIS have those records. Remember, OCLC is now the owner of the PAIS file. (It is another question why Dialog has cold URL for the items, and Ovid has only URLs for the mirrored sites of the journal not the source item, one of which is obviously wrong for a D-Lib article. For the other articles, there are no URLs at all.) There is a similar situation for the D-Lib Magazine article in the INSPEC implementations. Ovid and SilverPlatter do not have the URL for the item, but they have two URLs for the publication and one of them is obviously wrong.
Why is it that the OCLC version of PAIS has a hotlink to the article about Gnutella, but Ovid does not even have that data element? Why does only the OCLC version have a hotlinked URL to the source articles in Library Literature & Information Science, but none of the other implementations?
There is no easy answer to these questions. The problem may be that an online service did not receive on the tape that data element in the records that describe the URL of the source item. It is possible that the online service just did not update its import procedure to extract this data element. As different specialists handle different databases at the online services, one database may show the links, another may not. This may explain also why these data elements are hotlinked in some, but not all, of the databases offered by a specific online service. Yet another reason may be the lack of consistency where the URL appears in the records. LISA is the most inconsistent, showing the URL of the source document in the source field, at the beginning of the abstract, or somewhere else in the body of the abstracts. Lastly, online services may take the trouble of moving these URLs into a specific field within the record for sake of consistency and easier searching. This seems to be the case with the CSA version of LISA.
There are only a few consistent patterns. Library Literature never has the item's URL except in the OCLC implementation that also makes the URL hotlinked. Dialog never has a hotlinked URL, as it is not capable even of intra-database links by author, journal name, descriptor, and other data elements that other systems can do, let alone of external linking. It often does not even display the item's URL when SilverPlatter not only displays it in its implementation, but often makes it hotlinked. CSA was able to create valid hotlinked URLs for all of the LISA records.
Mainstreaming electronic journals into the abstracting/indexing databases of print journals is a good idea from the perspective of those who have a flat-rate subscription to one or more of the previous databases or who prefer to search an aggregated file rather than hop from journal Web site to journal Web site. However, if you access these systems on a pay-as-you-go basis, it is an expensive search. It is also frustrating, if the URL of the source item is not included in the record, or is erroneous. When the URL is present, cutting and pasting it into the browser address cell to be taken to the source item is a simple procedure. The best solution, of course, is the hotlinked URL. Users will not long put up with such idiosyncrasies, so the online service providers should find a way to extract from the records the most essential URL(s), and to make them browsable and searchable. It is also true that some LIS digital journals are not included in any bibliographic database.
If you don't have a flat-rate subscription to these systems, don't despair. Many of the journals have excellent search capabilities, and if you bookmark the most important electronic journals, you can easily find relevant articles. A better approach is to create a vortal and launch your searches in the appropriate archive from a central site. The best solution is to have a special metasearch engine that would run a single query across the archives of several journals.
Péter Jacsó (email@example.com) is associate professor of Library & Information Science at the University of Hawaii's Department of Information and Computer Sciences.
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