On-Line Remote Catalog Access and Circulation Control System. Part I: Functional Specifications. Part II: User's Manual.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Format:	Recurso educativo Open Access
Language:	en
Published:	1969
Subjects:	Automation Cataloging Computer Storage Devices Computers Information Retrieval Information Storage Libraries Library Automation Library Circulation Online Systems Telecommunications
Online Access:	Acceder al recurso
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_version_	1867181312250478592
collection	Education Resources Information Center
contents	On-Line Remote Catalog Access and Circulation Control System. Part I: Functional Specifications. Part II: User's Manual. Automation Cataloging Computer Storage Devices Computers Information Retrieval Information Storage Libraries Library Automation Library Circulation Online Systems Telecommunications The Ohio State University Libraries On-line Remote Catalog Access and Circulation Control System (LCS) began on-line operations with the conversion of one department library in November 1970. By December all 26 libraries had been converted to the automated system and LCS was fully operational one month ahead of schedule. LCS is designed as a user-oriented system. It utilizes the capabilities of high-speed computers, random access mass storage devices, telecommunication networks, and on-line terminals to provide both traditional circulation services and a unique access to the system by telephone. Part I, "Functional Specification" states explicitly the objectives of the system, the function which it performs, the details of all its interfaces, and the format of its files and tables, and represents the specifications for the computer system. Part II, "User's Guide" is a manual designed for the librarians who actually operate LCS provides detailed instructions for use of LCS terminals. (Author/AB)
format	Recurso educativo Open Access
id	eric_ED050792
institution	ERIC Institute of Education Sciences
language	en
publishDate	1969
record_format	eric
spellingShingle	On-Line Remote Catalog Access and Circulation Control System. Part I: Functional Specifications. Part II: User's Manual. Automation Cataloging Computer Storage Devices Computers Information Retrieval Information Storage Libraries Library Automation Library Circulation Online Systems Telecommunications On-Line Remote Catalog Access and Circulation Control System. Part I: Functional Specifications. Part II: User's Manual. Automation Cataloging Computer Storage Devices Computers Information Retrieval Information Storage Libraries Library Automation Library Circulation Online Systems Telecommunications The Ohio State University Libraries On-line Remote Catalog Access and Circulation Control System (LCS) began on-line operations with the conversion of one department library in November 1970. By December all 26 libraries had been converted to the automated system and LCS was fully operational one month ahead of schedule. LCS is designed as a user-oriented system. It utilizes the capabilities of high-speed computers, random access mass storage devices, telecommunication networks, and on-line terminals to provide both traditional circulation services and a unique access to the system by telephone. Part I, "Functional Specification" states explicitly the objectives of the system, the function which it performs, the details of all its interfaces, and the format of its files and tables, and represents the specifications for the computer system. Part II, "User's Guide" is a manual designed for the librarians who actually operate LCS provides detailed instructions for use of LCS terminals. (Author/AB)
title	On-Line Remote Catalog Access and Circulation Control System. Part I: Functional Specifications. Part II: User's Manual.
topic	Automation Cataloging Computer Storage Devices Computers Information Retrieval Information Storage Libraries Library Automation Library Circulation Online Systems Telecommunications
url	https://eric.ed.gov/?id=ED050792

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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