Abstract: Systems and methods of operating a human-machine interface (HMI) with a graphical user interface (GUI). A color spectrum is displayed along with a topic. A selection of a point on the color spectrum is received, and associated in a memory with the displayed topic. A data record is stored indicating a sentiment associated with the topic. The sentiment includes an intensity level and an emotion level. The intensity level is one of multiple intensity levels that change along a first dimension of the color spectrum, and the emotion level is one of multiple emotion levels that change along a second dimension of the color spectrum.

Abstract: Systems and methods of operating a human-machine interface (HMI) with a graphical user interface (GUI). A color spectrum is displayed along with a topic. A selection of a point on the color spectrum is received, and associated in a memory with the displayed topic. A data record is stored indicating a sentiment associated with the topic. The sentiment includes an intensity level and an emotion level. The intensity level is one of multiple intensity levels that change along a first dimension of the color spectrum, and the emotion level is one of multiple emotion levels that change along a second dimension of the color spectrum.