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Bibliographic Details
Main Authors:	Leigh, William, Paz, Noemi
Format:	Recurso educativo Open Access
Language:	en
Published:	1989
Subjects:	Bibliographic Databases Cost Effectiveness Data Processing Database Management Systems Information Retrieval Library Automation Library Circulation Online Catalogs
Online Access:	https://eric.ed.gov/?id=EJ405633
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MARC Bibliographic Records: Considerations and Conversion Procedures for Microcomputer Database Programs.
by: Connaway, Lynn Silipigni, et al.
Published: (1994)

SPIRES Tailored to a Special Library: A Mainframe Answer for a Small Online Catalog.
by: Newton, Mary
Published: (1989)

A National Networked Solution to Improving Access to Journal Articles.
by: Cohen, David
Published: (1989)

CD-ROM as a Cataloging Tool.
by: Saunders, Laverna M.
Published: (1988)

Federal Documents in the Online Catalog: Problems, Options, and the Future.
by: Swanbeck, Jan
Published: (1985)

Information on CD-ROM: A Directory. 3: Bibliographic Databases Update, 1990.
by: Ali, S. Nazim
Published: (1990)

OCLC and Rural Library Service.
by: Walters, Clarence R.
Published: (1989)

New Strategies for Delivering Library Resources to Users: Rethinking the Mechanisms in which Libraries Are Processing and Delivering Bibliographic Records
by: El-Sherbini, Magda, et al.
Published: (2007)

The National Coordinated Cataloging Program: An Assessment of the Pilot Project.
Published: (1990)

Whither OCLC? From Its New Headquarters, the Not-For-Profit Organization Forges a Future for Libraries.
Published: (1982)

WLN's Database: New Directions.
by: Ziegman, Bruce N.
Published: (1988)

Derivative Bibliographic Relationships: The Work Relationship in a Global Bibliographic Database.
by: Smiraglia, Richard P., et al.
Published: (1999)

An Investigation into the Economics of Retrospective Conversion Using a CD-ROM System.
by: Co, Francisca K.
Published: (1988)

Four Online Database Vendors: An Evaluation and Cost Analysis of Their Cataloging Support Services.
by: Chan, Anthony P.
Published: (1990)

CD-ROM Public Access Catalogs: Database Creation and Maintenance.
by: Bills, Linda G., et al.
Published: (1988)

Comparing Computerized and Paper Based Information Retrieval Systems in Library Public Services: A Meta-Analysis.
by: Trahan, Eric
Published: (1990)

Research Toward Enhancing Retrieval Effectiveness.
by: Schipma, Peter B.
Published: (1976)

Microcomputer in Colorado--It's Elementary!
by: Costa, Betty
Published: (1981)

Library Standards for Data Structures and Element Identification: U.S. MARC in Theory and Practice.
by: Crawford, Walt
Published: (1982)

Whither the White Knight: CDROM in Technical Services.
by: Campbell, Brian
Published: (1987)

A Cost Model for Retrospective Conversion Alternatives.
by: Peters, Stephen H., et al.
Published: (1984)

Missouri Library Connection: A Beginner's Guide to the Bibliofile/Microcomputer System.
by: Raithel, Frederick J., et al.
Published: (1988)

Creating and Maintaining the Bibliographic Database for Library Automation. ERIC Digest.
by: McQueen, Judy
Published: (1990)

The Basis for a Record in Major Cataloguing Codes and the Relation to FRBR.
by: Jonsson, Gunilla
Published: (2002)

Desperately Seeking Authority Control: Automated Systems Are Not Providing It.
by: Johnston, Sarah Hager
Published: (1990)

Interfaces: Functional Inaccessibility in Libraries.
by: Intner, Sheila S.
Published: (1989)

Toward a Computer-Generated Subject Validation File: Feasibility and Usefulness.
by: Chan, Lois Mai, et al.
Published: (1998)

Inter-Indexer Consistency in Bibliographic Record Access Points between OCLC and RLIN.
by: Salaba, Athena
Published: (1996)

The Impact of Adding Retrospective Conversion Holdings to OCLC on Interlibrary Loan Lending.
by: McCartney, Elizabeth J.
Published: (1989)

Catalog Record Contents Enhancement.
by: Weintraub, Tamara S., et al.
Published: (1993)

Investigation of the Searching Efficiency and Cost of Creating a Remote Access Catalog for the New York State Library. Final Report.
by: Buckland, Lawrence F., et al.
Published: (1972)

Current and Retrospective Sources of Machine Readable Monograph Cataloging Records; A Study of Their Potential Cost and Utility in Automated System Development at the University of Minnesota.
by: Grosch, Audrey N.
Published: (1975)

CD-ROM Use in an Association Special Library: A Case Study.
by: Sabelhaus, Linda
Published: (1988)

Offline Prints via DIALMAIL: They Ain't Necessarily Cheap.
by: Durfee, Linda J.
Published: (1987)

OhioLINK: A Statewide System Raises New Issues and Opportunities for Cooperation.
by: Kohl, David F.
Published: (1994)

Integrated Automated Systems and Technical Services.
by: Phelps, Doug, et al.
Published: (1988)

The Net and Z39.50: Toward a Virtual Union Catalog.
by: Stark, Ted
Published: (1997)

Context and Relationships, Past and Present: The Role of Authority in Information Discovery
by: Adamich, Tom
Published: (2010)

AACR2: OCLC's Implementation and Database Conversion.
by: Brown, Georgia L.
Published: (1981)

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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