Is the ability to implement an idea. It is related with the process and the resources. Is the way designers turn an idea into reality, and that´s why is an important part of the communication. We need to learn how to use softwares and other different tools to let the technique flow and don´t depend on it. An agile technique help the designer to make their ideas real, but also it let the public read better what the designer want to say.
In this post I would like to share a website that I use a lot to learn new techniques with the softwares: http://methodandcraft.com/