The Math Behind Project Scheduling, Bug Tracking, and Triage (2017)

A prior discussion here was linked from the article itself: https://news.ycombinator.com/item?id=15912929

> Random side note: Kanban-for-factories actually does things the other way around. They send an index card upstream to indicate that they need more stuff in order to continue work. This avoids the need for an actual "kanban board" that everyone all over the factory, plus your suppliers' factories, would need to all congregate at.

This actually seems like a better way to do it.

Having physical cards moved forward on a physical board might have been intuitive, but for software task tracking (and especially for remote teams) passing around requests seems better.

Besides, small teams also have the problem where the tasks are too diverse to be squeezed into a standard workflow, so having a single board for all tasks doesn't make sense.