



Visible Language Workshop
MIT Media Lab
20 Ames Street
Cambridge, MA 02139
E-mail: straus@media.mit.edu

FIGURE 1 Transparent intersecting planes provide different points of view on seven mutual funds. Click here for large version of image
FIGURE 2
Bar charts slice through information grid to show comparison of annual return versus 3 year risk for all
seven mutual funds.
Click here for large version of image
This scenario is a potential experience of future explorers of virtual information worlds. Recent research
into the development of these multi-dimensional worlds has uncovered both the potential of these spaces to
enhance our understanding of complex information as well as some very new problems of information
navigation and access.
...You are now inside a grid of numbers. These numbers represent a portfolio of seven mutual funds over
the past ten years. This data begins to become information when a translucent plane appears that slices
through the space along one axis. This plane highlights all of the information on each one of the seven
funds, one at a time. As the plane moves back and forth, numbers become perceptually "foregrounded" by
being highlighted and labeled, while remaining numbers fall to the background. (FIGURE1) In examining
information on CGM Mutual, you observe that this fund's annual return in 1991 was exceptionally high and
you desire to compare it to 1991 annual returns from the other funds. Another plane appears. This plane
slices through the grid of information perpendicular to the first plane. As this second plane moves to the
"annual returns" position you rotate your point of view 90 degrees. CGM's 17% now resides in a different
context-: you see it along with annual returns over the past ten years for all seven funds...
Financial Viewpoints makes use of multiple information representations which include bar
charts, graphs, and manager photos. (FIGURE2) Each one of these representations alone may produce a
specific meaning or force a particular interpretation of the information. Using graphical and spatial design
techniques such as transparency and dynamic objects to focus attention, Financial Viewpoints
allows all of these representations to coexist in a single continuous space. The user's ability to move freely
through the space and access these representations from multiple points of view allows her to grasp the
complexity of the information much like we grasp the complexity of our physical environment, by
aggregating a sequence of familiar and simplified representations.
The use of point-of-view to enable understanding of complex information relies on the conceptual metaphor
"understanding is seeing." (We also use this metaphor when we say, "I see" or "I'm not
clear about what you're saying.") In our research we have discovered the significance of the
role of the body in metaphors for understanding. Language provides much evidence, in fact,
that understanding is structured by our bodily experience in the physical world.[3]
3D virtual information spaces, because they are abstract worlds of suspended text and images rather than
simulations of the physical world, have a somewhat paradoxical relation to the body. As explorers of these
spaces we become (at some level of consciousness) both embodied and disembodied. We rely on bodily
intuition to navigate through and understand the structure and contents of the space, but we also have the
ability to do what our bodies do not allow us to do in the physical world: we can fly (even through time),
change our size (e.g. zoom through multiple scales of information) and see through objects (via
transparency).
Thus far in our research we have identified two ways in which virtual space can become embodied: by
engendering either a sense of scale, a sense of point-of-viewor, ideally, a sense of
both. Several researchers have used scale successfully in infinite zoom information interfaces. [1][2][4][5]
Navigation through these information spaces feels intuitive, we argue, because the user is, at some level of
consciousness, projecting his or her body into the virtual space.
Abstract
This paper presents Financial Viewpoints, an experimental interactive 3D information space
that spatially and volumetrically represents a portfolio of seven mutual funds. 3D point -of-view
is used to represent context and context shifts in the information and to allow users to view multiple
representations of the information in a single, continuous environment. This project is the first in a larger
and ongoing research effort to explore the notion of embodied virtual space.
Keywords:
information visualization, 3D interactive graphics, financial visualization, point-of-view, embodied virtual
space, user interface metaphors.
Introduction
Imagine yourself without size or weight. You are in a zero-gravity space and you see an object in the
distance. As you fly towards it, you are able to recognize the object as a financial portfolio. From this
distance the form of the object conveys that the portfolio is doing well. You move closer. As you near the
object, you pass through an atmosphere of information about net assets and overall return statistics. You
continue moving closer. Suddenly you stop and look around. The financial portfolio is no longer an object,
but a space that you now inhabit. Information surrounds you...
contexts which include: 1) the mutual fund it belongs to (CGM Mutual), 2) a group of data
representing the present holdings in other areas (sector weightings), and 3) the group consisting of the
percentage of consumer durables for all seven funds. In each one of these contexts, this single piece of data
may have a different meaning for the user. The following description represents an experience of an
explorer of Financial Viewpoints:
Financial Viewpoints represents a first experiment within an approach for enabling
understanding of information that we have termed embodied virtual space. Embodied virtual
information spaces are spaces that both embody and disembody us, as users. Our objective is to create
information spaces that empower us, by allowing us to rely on our bodily intuition for natural navigation,
and also by giving us additional superhuman abilities that can greatly enhance our capacity for
understanding.
Summary and future work
Financial Viewpoints makes use of point-of-view to enable understanding of
information in 3D virtual space. Future work will explore the combination of multi-scaled and multiple
point-of-view interfaces as well as possible representations of the body in information space that may
further enhance our understanding of complex information.
Acknowledgments
The author would like to acknowledge Muriel Cooper, William Mitchell, and the members of the Visible
Language Workshop for their contributions to this research.