How does the auto-meta-adding plugin get used by other tools in the Liquid Information Environment?
I have written on the importance of addressability http://wordpress.liquid.info/?s=addressability but it can be summed up as simply: If you can’t address it, you can’t address it. This relates to the importance of objects ‘knowing’ what they are. I remember reading about the development of the open-world game Crysis where one of the developers noted that building the AI was not too hard (in his mind), what mattered was that everything in the world should know what it is. For example, a pice of wood needs to know all the properties of wood so that if it is hit by a round or fist it will behave appropriately.
These two points have real application in the world of knowledge work as well, particularly when it comes to interactions in a richly visual space: If we refer to a document it’s not all that useful to use the nonsensical name of the file, it is much more useful to use the actual name of the document, which is rarely the name of the file when we are talking about PDFs. Furthermore, it becomes useful to refer to aspects of the document, such as the author, so that we can have a graph showing either the documents or the authors (or both) as the main nodes, with connections between them. It might further be useful to put the documents on a timeline and cluster by institution or publication. All this can be done easily if the PDFs are imported into the space with these pieces of meta information attached.
In the Liquid world that means it would be possible to visualise as described above in Liquid | View and in the Liquid | Reader this can be used to allow the user to simply copy text and have it be an augmented copy, complete with all the citation information when pasted.
I call these the very basic Rich PDF documents, where only the creator information is included. Further information about what’s inside the PDF should be surfaced for the host server or application, as suggested by Chris Gutterdidge, so that manipulations can be done in useful ways, such as showing all citations is contains and so forth.