The Secret World developers have penned a nifty preview for the upcoming Augment System which will arrive with Issue 8. The Augment System will feature Damage, Support, Healing and Survivability, each divided into ten levels of varying levels of rarity. The AS will have its own skill wheel as well.
There are four main groups of Augments: Damage, Support, Healing and Survivability. Each group consists of ten unique Augments. These ten are divided into different degrees of rarity: One Green, four Blue, four Purple and the rarest is the one Yellow.
The new Augments have gotten their very own Augment Wheel, where all of them can be studied and progress monitored.
You use Augments by attaching them to the active Abilities on your Abilities bar. Each Augment group has a color and each active Ability uses this color coding to show which types of Augments can be attached to it.
Read the rest of the 'primer' on the Augment System on The Secret World's site.