Interfaces, aims, issues and views make up the Yala. They relate to one another like the trunk, branches, twigs and leaves of a tree. Just as a trunk can support many branches, a branch many twigs, and a twig many leaves, so an interface may have several aims, an aim generate many issues, and an issue support many alternative points of view.
A Yala is organic. It takes time to take root, and care and attention to flourish.
First, understand interfaces.