WYSIWIS Revised: Early Experiences with Multiuser Interfaces
M. Stefik, D.G. Bobrow, G. Foster, S. Lanning, and D. Tatar
Nov 1, 1999

• Erasing the whole stroke: good or bad? Does it speed up the process or does it break the blackboard metaphor?
• I found good the relaxation of WYSIWIS in the four dimensions of collaboration.
• They proposed the used of different applications for Colab: How difficult was to switch between them?
• Cognoter imposes a formal social protocol: how good is that?
  In fact this question is answered in the next paper, where the authors present how Cognoter was designed with an implicit (wrong) model of social interaction.