Interpretive planning is a collaborative process in which historians are part of teams with curators, designers, educators, researchers, and exhibit planners. Historians must study the institution's mission plan and any possible previous interpretive design in order to understand the role and function of the institution. The Northern Irish group Healing through Remembering decided to mount an exhibit about the Northern Irish Conflict. During the presentation of the Guantanamo Public Memory Project at the International Civil Rights Center and Museum in Greensboro, visitors were asked to participate in a poll regarding the use of Guantanamo. Rachleff argues that the collaboration seems 'to offer history museums an avenue for making history appear human, more relatable for contemporary sensibilities'. Regarding historic house museums but the statement can be enlarged to any site of interpretation McDaniel argues that interpretation 'has changed significantly in recent years and has become one of the most challenging areas in which to work'.