Definition of systems design by Liz England (Ubisoft's systems designer)

Recently I had a conversation with Liz England, systems designer of Sunset Overdrive, Scribblenauts, Resistance 3 and Fuse about game design and especially systems design. Currently she is working at Ubisoft Toronto. We're trying to figure out what exactly the systems design is and how one can approach it.

Listen to the Skype conversation here: