start_date
Start Date
Date on which the document starts being free-to-read or begins the
given license, as defined in NISO RP-22-2015, Access License and
Indicators.
Remarks
Best Practice: NISO RP-22-2015 recommends
that the start date be given in the ISO-8601 format “YYYY-MM-DD”, without inclusion of a time or a time zone.
Used on Elements: <ali:free_to_read>, <ali:license_ref>
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | The ISO 8601 date on which the document starts being free-to-read or begins the given license. |
| Restriction | @start_date is an optional attribute; there is no default. |
Example 1
Free-to-read flag with both start and end dates. The document is free to read after the start date. After the end date, the 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> ...
Example 2
An example of licensing and usage rights changing over time. The content is under a
proprietary license from psychoceramics.org at first (February 3, 2014; initial publication) and then under a CC BY license a year later.
... <permissions> <license> <ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2014-02-03"> http://www.psychoceramics.org/license_v1.html</ali:license_ref> <ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2015-02-03"> http://creativecommons.org/licenses/by/3.0/</ali:license_ref> </license> </permissions> ...