[pirateking]

I naturally see the visual language as an output and the interaction language as an input, both interfacing with the holistic design space that I am trying to explore across the design process. They are not two discrete activities, but two forms of participation in a singular activity, with a design of the thing as a single output. I have taken this approach to designing things for a long time now, with no great peril beyond philosophical curiosities such as this.

[seanmcdirmid]

Could you please point out a platform that provides an interaction design language in addition to the standard visual design language? Interaction design is very application specific, and I'm not sure how much can be guided at the platform level.

[magicalist]

Like [1] or [2]? Maybe I'm misunderstanding what you're asking for, but it's not uncommon to provide interaction guidelines...

[1] http://www.google.com/design/spec/animation/responsive-inter...

[2] https://developer.apple.com/library/ios/documentation/UserEx...

edit: oh, maybe by "patterns of flows" you mean the user's flow through an application, as opposed to individual interactions? That's seems less often addressed, but it is still out there: [3]

[3] https://developer.apple.com/library/ios/documentation/UserEx...