The quality of connections

The more I observe and reflect on the quality of connections in community networks, the more interested I become in the question of how to assess for this quality.

Of course, interaction frequency will remain a baseline indicating quality connections, but what beyond that?

I'm thinking there are at least these 4 indicators.

Alignment - how much do people have in common?
Productivity - how much new value does the relationship create?
Introductions - how many valuable introductions does the relationship produce?
Learning - how much new learning do people gain from each other and collaboratively?