2 Related work
Museums, thanks to their enclosed nature and well-defined role, have been a fertile ground for studying visitor behavior [16] and envisioning systems that would enhance visitor experience. Early electronic guidebook tools in the form of acoustic guides have been successfully deployed in museums for some time. Their application, though, is limited by the fact that they rely upon sound to guide a visitor through an exhibit. Audio guides can inform only by describing; they require the user to make his or her own associations with an exhibit with no visual cues to assist them.