Choice and order of items

[mikeapp]

For some cases the order of (non-default) items in a choice resource is meaningful and it would benefit the user if the client maintained the order in the display. (Our use case is arranging the multispectral imagery by wavelength. Another might be conservation images in chronological order.) Perhaps we could recommend this?

[azaroth42]

This is going to be a LONG defer unfortunately. The Choice construction in Open Annotation isn't ordered, so while in JSON it looks like a list, in RDF it's actually:

_:choice default <a> ;
  item <b> ;
  item <c> ;
  item <d> .

This is on my list of issues to discuss in the Web Annotation Working Group... which should have its TR done by 2016.

[mikeapp]

😢 I'd forgotten it wasn't a list; despite this the order was preserved in my processing workflow.

Could/should we suggest any behavior on the client side? Sorting by label?

[azaroth42]

Noting that Choice in WAWG is an ordered list of options, and hence we're able to progress on this in 3.0.

[jpstroop]

2 August 2017 call: Make sure this is surfaced in the companion document about the web annotation that accompanies prezi 3.

[azaroth42]

Closing as in Prezi3 there won't be any normative text about Choices, there will just be recipes for using Annotations in this way in the cookbook.