  Gaps and requirements for multi-modal interfaces for humanities can be
explored by observing the configuration of real-world environments and the
tasks of visitors within them compared to digital environments. Examples
include stores, museums, galleries, and stages with tasks similar to
visualization tasks such as overview, zoom and detail; multi-dimensional
reduction; collaboration; and comparison; with real-world environments offering
much richer interactions. Some of these capabilities exist with the technology
and visualization research, but not routinely available in implementations.
