Forum:Do players activate cyber dragons effect?

I am allways confused about using Cyber Dragon's effect. I am under the impression that when I choose to special summon him, I am activating an effect that cannot be chained to. I have looked on Wikia rulings from Google about special summoning conditions, and can only tell that the effect, that i assume im activating, cannot be chained to.

A related point or question:

is using a card or a card's effect made possible by activating it? -kylwinters