> Is there a pattern to the above? It seems like a combination of [a] big complex software with lots of features, [and a] GUI... often means that open-source collaboration model falls behind the proprietary commercial offerings. Why?
Interaction Design (IxD) isn’t something that can be done piecemeal; it needs to be done top-down, with an overarching vision, to achieve its ends (an intuitive design.) Intuition comes from obvious implicit structure, where you can easily “get into the mind of” the designer, discover their mental model, and then use it to predict how other features will work. If there’s no single designer (or very-tightly-constraining design document) then there’s no unified mental model to learn, and so no intuition.
And there are relatively-few professional designers in the open-source community.
It’s easy and low-friction for a professional programmer to “scratch their own itch” by implementing just one little change in a piece of software, and by that means, FOSS software’s source code quality can be improved piecemeal. But it’s both difficult (you have to re-do everything at once for it to help) and high-friction (hard to convince the software maintainers to accept the change) to contribute a design change to FOSS software. So useful FOSS software design changes are almost impractical (unless the stars align); and so professional designers just don’t bother to even try to take part in the community.
So instead, FOSS software just tends to languish without any unified design vision ever being applied to it. (Or with a bad, arbitrary, and unintuitive design vision being contributed at some point by some inexperienced designer, and being accepted because the maintainers are all programmers with no sense for IxD themselves.)
There’s also the fact that a lot of IxD needs to be informed by data — e.g. user workflow studies — that cost money to run; and FOSS projects don’t tend to have the budget for this, or don’t tend to see it as a priority for spending what budget they do have, since they have no “design advocate” on the team to ask for it.