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Bibliographic Details
Main Authors:	Salmon, Stephen R., And Others
Format:	Recurso educativo Open Access
Language:	en
Published:	1982
Subjects:	College Libraries Databases Display Systems Indexes Information Retrieval Library Automation Library Networks Library Planning Man Machine Systems Online Systems Search Strategies Specifications Union Catalogs
Online Access:	https://eric.ed.gov/?id=EJ274786
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Laserdisc Technology Enters Mainstream.
by: Stephens, Kent
Published: (1986)

The Uniform Catalog.
by: Buckel, William L.
Published: (1986)

SLIMMER--A UNIX System-Based Information Retrieval System.
by: Waldstein, Robert K.
Published: (1988)

In Depth--The Online Catalogue of the University of Illinois at Urbana-Champaign.
by: Gorman, Michael, et al.
Published: (1985)

Online Library Users--The Library Comes of Age.
by: Cochrane, Pauline A., et al.
Published: (1985)

Modern Subject Access in the Online Age.
by: Cochrane, Pauline A., et al.
Published: (1984)

CITE NLM: Natural-Language Searching in an Online Catalog.
by: Doszkocs, Tamas E.
Published: (1983)

InfoQUEST: An Online Catalog for Small Libraries.
by: Campbell, Bonnie
Published: (1984)

Conversations with MELVYL: Translated from the MELVYLIAN Language.
by: Klugman, Simone
Published: (1982)

Dewey Decimal Classification Online Project: Evaluation of a Library Schedule and Index Integrated into the Subject Searching Capabilities of an Online Catalog. Final Report.
by: Markey, Karen, et al.
Published: (1986)

OCLC's Local Library System: LS/2000.
by: Lutz, Marilyn
Published: (1984)

In-House Automation of a Small Library Using a Mainframe Computer.
by: Waranius, Frances B., et al.
Published: (1986)

System Features for Subject Access in the Online Catalog.
by: Lawrence, Gary S.
Published: (1985)

Subject-Searching Experiences and Needs of Online Catalog Users: Implications for Library Classification.
by: Markey, Karen
Published: (1985)

Online Subject Access--Enhancing the Library Catalog.
by: Mandel, Carol A., et al.
Published: (1983)

Dartmouth College: The BRS Link.
by: Fayen, Emily
Published: (1983)

CLSI On-Line Public Catalog Keyboard Terminal Manual: Training Manual.
Published: (1982)

To Boolean or Not To Boolean.
by: Hildreth, Charles R.
Published: (1983)

Is the OCLC Database Too Large? A Study of the Effect of Duplicate Records in the OCLC System.
by: Wanninger, Patricia Dwyer
Published: (1982)

The Online Public Access Catalog in 1984: Evaluating Needs and Choices.
by: Fayen, Emily Gallup
Published: (1984)

OPACs: The User and Subject Access.
by: Carson, Elizabeth
Published: (1985)

Microcomputers and Online Catalogs.
by: Gorman, Michael
Published: (1984)

Communicating with Online Catalogs and Other Retrieval Systems: The Need for a Standard Command Language.
by: Hildreth, Charles R.
Published: (1986)

OASIS: Prototyping Graphical Interfaces to Networked Information.
by: Buckland, Michael K., et al.
Published: (1993)

Can Online Catalogs Be Too Easy?
by: Arret, Linda
Published: (1985)

University of California Prototype On-Line Catalog: Preliminary Specifications for the Patron Interface. Working Paper No. 7.
by: Klemperer, Katharina, et al.
Published: (1980)

Terminal Ailments Need Not Be Fatal: A Speculative Assessment of the Impact of Online Public Access Catalogs in Academic Settings.
by: Sandler, Mark
Published: (1985)

Practical Considerations of the Current Capabilities of Subject Access in Online Public Catalogs.
by: Lipow, Anne Grodzins
Published: (1983)

CLSI On-Line Public Catalog Touch Terminal Manual: Training Manual.
Published: (1982)

Making a Library Catalog Adaptive.
by: Buckland, Michael K., et al.
Published: (1992)

Search Helper: Sancho Panza or Mephistopheles?
by: Pisciotta, Henry, et al.
Published: (1984)

A Pilot - An On-Line Library Acquisition System.
by: Spigai, Frances, et al.
Published: (1968)

The Catalog as Access Mechanism: Background and Concepts.
by: Wilson, Patrick
Published: (1983)

OCLC Search Key Usage Patterns in a Large Research Library.
by: Rastogi, Kunj B., et al.
Published: (1981)

Design for an Adaptive Library Catalog.
by: Buckland, Michael K., et al.
Published: (1992)

University of California Users Look at MELVYL: Results of a Survey of Users of the University of California Prototype Online Union Catalog. Part 1. Final Report.
Published: (1983)

PHOENIX II: An On-line Catalogue in a University Library.
by: Clinton, Marshall
Published: (1982)

Database Limitations and Online Catalogs.
by: Simonds, Michael J.
Published: (1984)

An Online Reference System.
by: Chisman, Janet, et al.
Published: (1984)

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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