<ali:free_to_read> Free to Read (NISO ALI)
A flag indicating that the document content can be read or viewed at its current location by any user without payment or authentication; it is free to be read.
This element is defined in NISO Access License and Indicators (ALI) NISO RP-22-2015.
This is a simple indication of the status of the standard that does not make any statements about additional reuse rights or restrictions. Absence of this element in a document does not indicate its negation; it merely indicates that a user would need to look to other information to ascertain the status of the document.
Start and end dates can be placed on the free-to-read status using the attributes @start_date and @end_date. Start and end dates can be used to record delayed access, special offers, etc., where the content is free to be read for a period of time or after a particular date. The absence of both start and end dates indicates a permanent “free-to-read” status.
xmlns:ali (fixed value = http://www.niso.org/schemas/ali/1.0)
Models and Context
May be contained in
This is an EMPTY element
<!ELEMENT ali:free_to_read %free-to-read-model; >
Expanded Content Model
Free-to-read flag with start date
Document is free to read anytime after the start date.
... <permissions> <ali:free_to_read start_date="2016-01-01"/> <license> <ali:license_ref start_date="2016-01-01" >http://creativecommons.org/licenses/by-nc/4.0/</ali:license_ref> <license-p>For noncommercial purposes only, this publication may be reproduced or transmitted in any form or by any means without prior permission in writing from the publisher, provided it is reproduced accurately, the source of the material is identified, and you do not in any way that suggests the licensor endorses you or your use.</license-p> </license> </permissions> ...