@techreport{TR-IC-98-23,
  number = {IC-98-23},
  author = {Antonio Mendes da {Silva Filho} and Hans Kurt E. Liesenberg},
  title = {Capturing Computer-Human Interaction Design via the Protagonist Action Notation},
  month = {June},
  year = {1998}, 
  institution = {Institute of Computing, University of Campinas},
  note = {In English, 14 pages.
    \par\selectlanguage{english}\textbf{Abstract}
      With the recent increase in popularity of the Internet
      a new user population has emerged with little expertise
      to use interactive systems. Hence, developing interfaces for such
      systems has required the involvement of experts of several areas.
      A further observation is that about $50\%$ of the time and resources
      are consumed just for the interface component of well-designed
      interactive systems. In order to contribute to the quality
      improvement of interface components as well as to make
      the development process of such components more effective,
      a specification technique for Computer-Human Interaction (CHI),
      called Protagonist Action Notation (PAN) is presented. PAN along with
      the Task Coordination Model (TCM) are used to represent
      the control aspects of the CHI Design.
      An example of a networked Web game called NetConnect4
      illustrates the use of PAN.
  }
}