23) How does ACAP Version 1.1 differ from 1.0?

ACAP Version 1.1 represents a small but significant upgrade of ACAP Version 1.0, clarifying existing features and including a small number of new features. The aim of the upgrade has been to make it even easier for publishers, search engine operators and other aggregators to implement More >

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23) How does ACAP Version 1.1 differ from 1.0?

ACAP Version 1.1 represents a small but significant upgrade of ACAP Version 1.0, clarifying existing features and including a small number of new features. The aim of the upgrade has been to make it even easier for publishers, search engine operators and other aggregators to implement

The most significant change is in providing explicit rules for how aggregators should interpret some of the more complex forms of expression in ACAP. It has now been made clear that, where an aggregator is unable (for whatever reason) to interpret a complex permission expression as the publisher clearly intended, the alternative is to interpret the expression as a prohibition, thereby avoiding the risk of using the publisher’s content in ways that the publisher had not intended should be permitted.

New features include a number of extensions to the ACAP vocabulary:

  • It is now possible to indicate when permissions data is embedded in a photograph using the PLUS Coalition’s License Definition Format.
  • It is now possible to indicate when permissions for extended usages may be available, with reference to external resources.
  • It is now possible to express constraints upon the presentation of content to end-users based upon their location (country, domain name, IP address range).