You can't kiss anybody and nobody can punch you in the nose, but a lot can happen within those boundaries.
The Widen API is just a bunch of remote functions for managing, querying and organizing media assets in many different ways. It can be seen as a transitional technology between what we web pros call "Web 2.0" (distributed services) and "Web 3.0" (semantic web).
The folks at WorldFish have a huge media repository including thousands of well-organized images from around the world, including metadata, and they wanted to give users searchable access to this repository via their website. But there's a complication: WorldFish is part of the nonprofit CGIAR consortium, and that entity has many other websites, all of which want searchable access to different subsets of these media collections.[continued]