[dpub-loc] Use Cases

Hi all,

Below, you can find some use cases I thought of, where I think the locators
should be resilient to.
Something to discuss at 3PM UTC :)

state-wise, I currently assume the following:
* a PWP can be unpacked or packed
* a PWP can be online (http), offline (cache), or downloaded (file). Other
variations like accessing via FTP etc. are not excluded.

## Annotating across states

*1 Writer Annie has her book published on her own web space as a PWP
[http/unpacked]. Reader Bob reads it online, and selects a nice quote to
bookmark via its browser PWP bookmarking plugin: PWPMark-plugin.
*2 Writer Annie has her book published on her own web space as a PWP
[http/unpacked]. Reader Bob caches the PWP [cache/unpacked], reads it
offline, and selects a nice quote to bookmark using PWPMark-plugin.
  *2a When Bob re-opens the offline PWP, the booksmarks are shown via
PWPMark-plugin
  *2b When Bob re-visits the original PWP, PWPMark-plugin can also show
Bob's bookmarks in the online version.
*3 Writer Annie has her book published on her own web space as a PWP
[http/packed]. Reader Bob opens it online using the PWP reading plugin
PWPRead-plugin, and selects a nice quote to bookmark via PWPMark-plugin.
*4 Writer Annie has her book published on her own web space as a PWP
[http/packed]. Reader Bob caches it using a plugin [cache/packed], and
selects a nice quote to bookmark via PWPMark-plugin.
*5 Writer Annie has her book published on her own web space as a PWP, both
packed [http/packed] as unpacked [http/unpacked]. Reader Bob reads
[http/unpacked] online and selects a nice quote to bookmark via
PWPMark-plugin. Then, Bob downloads [http/packed] to his local filesystem
[file/packed] to open in his reading system of choice, namely, PWPRead-soft.
  *5a PWPRead-soft synchronizes with Bob's PWPMark profile, and can show
Bob's bookmarks when he continues reading [file/packed]

## Private/Public annotations

*1 Bob is reading in PWPRead-soft, and makes private annotations. These
annotations can be - via Bob's PWPMark profile - synced across devices.
*2 Bob makes a couple of his annotations public. Chris also has a PWPMark
profile, and choses to show all public annotations whilst reading using
PWPRead-plugin. Chris sees Bob's annotations whilst reading the same
document.
  *2a this could be extended to more 'fine-grained' user access, e.g., two
lawyers annotating the same contract as a PWP on their own computer. These
annotations are shared only in specific groups, depending on what the
PWPMark software allows.

Kind regards,
Ben
Ben De Meester
Researcher Semantic Web
Ghent University - iMinds - Data Science Lab | Faculty of Engineering and
Architecture | Department of Electronics and Information Systems
Sint-Pietersnieuwstraat 41, 9000 Ghent, Belgium
t: +32 9 331 49 59 | e: ben.demeester@ugent.be | URL:
http://users.ugent.be/~bjdmeest/