The author describes what he purports to be a simple, universal language for literally all content. Everything, he says, can be described and explained in terms of "role, states, attributes, relations, and actions."
> Does your web app use chemistry ring formulas or math equations or anything else from any other subject you can think of? So, you can definitely describe all those symbols and formulas to your friend, so your friend can understand those, right? Thus, you should be able to express those in accessibility concepts as well. You may want to practice on your own to see how it goes.
But why those five concepts in particular? Philosophers have been attempting to identify a set of universal groups for human concepts since the ancient Greeks, (it's called "ontology") and I see no reason to think that the author happens to have solved this problem.
For example, what's the difference between a state and an attribute? Is an action a relation between the subject and its object? If an object can change roles, is that a state change? Or is it a change in the relation of the object to its role? Is a role change just an action?
All of the author's proposed accessibility concepts mush together when you think about them critically.
In contrast, WAI-ARIA, taking the problem of taxonomy seriously, did not attempt to define five core accessibility concepts and apply them to all of human experience. They have a zillion different roles, developed more or less organically, to address specific UI use cases.
ARIA's complexity isn't just an unfortunate fact of history; this is literally the best that humanity can do. We can't simplify the world into five kinds of concepts, and it's not worth trying.
Those five concepts are not random, they go from the assistive technologies world: most if not all desktop APIs use these terms.
Agreed, the state concept (or even role concept) can be technically mapped into attributes, but I keep using them just to stick closer to existing terminology.
When it comes to ARIA, all browsers map ARIA taxonomies into desktop APIs, and thus I think it's fair to say ARIA is mapped into those concepts as well.
But this post wasn't an attempt to define accessibility concepts as such. It was rather about answering a question, whether a large set of accessibility problems can be solved, if the web came with a technology that provides greater access to express semantics to web devs.
No, those problems can’t be solved this way. Your taxonomy may seem more “expressive” to you, but your five concepts are too vague to build a useful screen-reader around. Web developers won’t use the concepts consistently; screen readers won’t interpret them consistently.
None of the relevant vendors are on board, because they’ve all considered a simpler taxonomy and rejected the idea, in favor of a richer, more complex system that can actually be implemented.
Having these concepts exposed to the web doesn't repeal the necessary of standardization, i.e. both web developers and AT vendors has to stay in agreement on content semantics they operate with, but it will make the agreement process simpler than it's now, because it doesn't require implementation from browsers for each and every new feature. Also it will enable experimenting on the web, where web developers and AT vendors can try new things before stuffing them into standards, which should boost the accessible web.
I doubt browser vendors can "fix" things for the more complex media types, because they tend to have no straightforward answer.
What you tend to see with video games is that people appreciate games that have a lot of configuration and control options. That let's the user figure out something that works for them. Unfortunately, that's not going to be expressible with some metadata like HTML attributes.
I would love to have some examples. I believe there are cases which don't make a perfect fit for metadata mappings, but keeping it on radar could help to evolve techs right way and address such cases.
> Does your web app use chemistry ring formulas or math equations or anything else from any other subject you can think of? So, you can definitely describe all those symbols and formulas to your friend, so your friend can understand those, right? Thus, you should be able to express those in accessibility concepts as well. You may want to practice on your own to see how it goes.
But why those five concepts in particular? Philosophers have been attempting to identify a set of universal groups for human concepts since the ancient Greeks, (it's called "ontology") and I see no reason to think that the author happens to have solved this problem.
For example, what's the difference between a state and an attribute? Is an action a relation between the subject and its object? If an object can change roles, is that a state change? Or is it a change in the relation of the object to its role? Is a role change just an action?
All of the author's proposed accessibility concepts mush together when you think about them critically.
In contrast, WAI-ARIA, taking the problem of taxonomy seriously, did not attempt to define five core accessibility concepts and apply them to all of human experience. They have a zillion different roles, developed more or less organically, to address specific UI use cases.
ARIA's complexity isn't just an unfortunate fact of history; this is literally the best that humanity can do. We can't simplify the world into five kinds of concepts, and it's not worth trying.