Models of community-engaged arts can vary with three forms of collaborative practices emerging from among the sets of common practices. In the artist-driven model, artists are seen as the catalysts for social change through the social commentary addressed in their works. A muralist whose work elicits and sustains political dialogue would be a practitioner of this model. In the second model, artists engage with community groups to facilitate specialized forms of art creation, often with the goal of presenting the work in a public forum to promote awareness and to further discourse within a larger community. In the process-driven or dialogic model, artists may engage with a group to facilitate an artistic process that addresses particular concerns specific to the group. The use of an artistic process (such as dance or social circus) for problem-solving, therapeutic, group-empowerment or strategic planning purposes may result in artistic works that are not intended for public presentation. In the second and third models, the individuals who collaborate on the artistic creation may not define themselves as artists but are considered practitioners of an art-making process that produces social change.