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Bibliographic Details
Main Authors:	Cochrane, Pauline A., And Others
Format:	Recurso educativo Open Access
Language:	en
Published:	1984
Subjects:	Indexing Information Retrieval Information Storage Library Automation Library Catalogs Man Machine Systems Online Systems Search Strategies Subject Index Terms Technological Advancement
Online Access:	https://eric.ed.gov/?id=EJ305652
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author	Cochrane, Pauline A. And Others
author_facet	Cochrane, Pauline A. And Others Cochrane, Pauline A. And Others
collection	Education Resources Information Center
contents	Modern Subject Access in the Online Age. Cochrane, Pauline A. And Others Indexing Information Retrieval Information Storage Library Automation Library Catalogs Man Machine Systems Online Systems Search Strategies Subject Index Terms Technological Advancement In this fifth course installment, the impact of technological developments on subject access is discussed. Expert opinions concerning trends in online catalogs, information storage, information generation, the user interface, library use of computer technology, subject access to pictorial materials, user friendly access sytems, and quicker access to information are included. (EJS)
format	Recurso educativo Open Access
id	eric_EJ305652
institution	ERIC Institute of Education Sciences
language	en
publishDate	1984
record_format	eric
spellingShingle	Modern Subject Access in the Online Age. Cochrane, Pauline A. And Others Indexing Information Retrieval Information Storage Library Automation Library Catalogs Man Machine Systems Online Systems Search Strategies Subject Index Terms Technological Advancement Modern Subject Access in the Online Age. Cochrane, Pauline A. And Others Indexing Information Retrieval Information Storage Library Automation Library Catalogs Man Machine Systems Online Systems Search Strategies Subject Index Terms Technological Advancement In this fifth course installment, the impact of technological developments on subject access is discussed. Expert opinions concerning trends in online catalogs, information storage, information generation, the user interface, library use of computer technology, subject access to pictorial materials, user friendly access sytems, and quicker access to information are included. (EJS)
title	Modern Subject Access in the Online Age.
topic	Indexing Information Retrieval Information Storage Library Automation Library Catalogs Man Machine Systems Online Systems Search Strategies Subject Index Terms Technological Advancement
url	https://eric.ed.gov/?id=EJ305652

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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language	"en"
ui	"standard"

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PHP_SELF	"/index.php"
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Environment & details:

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FlashMessenger	Laminas\Stdlib\ArrayObject {#1583}
SessionHelper	Laminas\Stdlib\ArrayObject {#1776}

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Key	Value
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REDIRECT_HTTPS	"on"
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REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"VUFIND_SESSION=6a928d35b138a3164330157dcb6d6b9b; language=en; ui=standard"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.217.169"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"56765"
REDIRECT_URL	"/Record/eric_EJ305652/Details"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/eric_EJ305652/Details"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1784872088.1915
REQUEST_TIME	1784872088

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

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