<ali:free_to_read> Free to Read (NISO Access License and Indicators)
A flag indicating that the document content can be read or viewed at its current location by any user without payment or authentication.
This element is defined in NISO RP-22-2015 Access License and Indicators Recommended Practice. It is a simple indication of the status of the document 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 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
With both start and end dates
Free to read after start date. After end date, document will no longer be free to read.
... <permissions> <ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2014-01-01" end_date="2014-12-31"/> </permissions> ...