Survey of Pen-and-Paper Computing - Human-Computer Interaction - page 52

Fig. 2.16 PaperPoint integrates paper-based annotations into slide presentations (photo courtesy
of Beat Signer)

PaperPoint [135] shows how a paper-based interface can support slide presenta-
tions. The presenter uses a printout of the presentation slides (Fig. 2.16). By making
pen gestures on the printout, the presenter can control which slide is presented. In
addition, handwritten annotations made on the printout are automatically integrated
into the projected slide in real-time. The concept allows presenters to overcome
the implicit linear character of slide presentations by developing a slide sequence
on-the-fly that meets the demands of the audience. Anoto has commercialized this
concept as a product called Anoto PenPresenter 23 .
Similarly, PaperCP [74] supports in-classroom collaboration by slide annota-
tions. Students can annotate printed handouts of lecture slides and electronically
transmit their annotations to the instructor. The authors improve over PaperPoint
by introducing a paper-based mechanism for defining which annotations are shared
with the instructor and which annotations are kept private. This feature relies on
two separate areas on each slide - one is used for making shared notes, the other for
private notes.
CoScribe (cf. chapter 5 of this topic and [144]) supports asynchronous sharing
of annotations made on printed PDF documents and presentation slides. Different
personal annotation styles are addressed by flexible print layouts, e.g. additional
notetaking areas support extensive notes or many shared annotations. A paper-based
sharing mechanism allows for sharing annotations with different groups of people.
A novel visualization of shared handwritten annotations provides efficient access to
annotations of multiple users in one single view.

23

http://www.anoto.com/facilisis-a-consequat-quis-1.aspx