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- Path: sparky!uunet!mcsun!sunic!hagbard!loglule!peter
- From: peter@lulea.trab.se (Peter Cigehn)
- Newsgroups: comp.groupware
- Subject: [SUMMARY] PD programs for synchronous CSCW
- Keywords: CSCW, PD program, summary
- Message-ID: <4742@emmerick.lulea.trab.se>
- Date: 30 Jul 92 11:45:30 GMT
- Organization: Telia Research AB, Aurorum 6, 951 75 Lulea, Sweden
- Lines: 145
- X-Newsreader: Tin 1.1 PL4
-
- About a month ago I posted a request for public domain programs that
- could be used in a shared desktop system. A quick remainder for those
- of you who missed it:
-
- >I'm about to write a MSc thesis in Computer Science. The subject of
- >the thesis is synchronous CSCW and one of the goals with the thesis
- >work is to make a prototype of simple shared desktop system.
- >
- >So far I'm aware of a few programs in the public domain which I've
- >found interesting:
- >
- > XTV: X Terminal View from Old Dominion University and University of
- > North Carolina at Chapel Hill.
- >
- > shX: Shared X from Digital Equipment Corporation.
- >
- > XMX: An X Protocol Multiplexor from The Computer Science Department
- > at Brown University.
-
- >I wonder if there are other similar programs in the public domain which
- >are available via anonymous ftp. Please email me any hints and directions
- >of where I can find such programs and I'll post a summary of the replies.
-
- So far I've received 6 replies, but none of them has given me anything
- new. 2 of them pointed out 'wscrawl' and 1 mentioned 'shdr', both of them
- are shared drawing programs and I already knew about both these system.
-
- This is what have come to my knowledge so far:
-
- -----------------------------------------------------------------------------
- XTV: X Terminal View
-
- Description: "XTV, or X Terminal View, is a system by which single-
- user applications using the MIT X11R4 windowing protocol
- may be shared among many users. It allows users at
- multiple sites to view and manipulate (via a floor-
- passing system) the output from a single X application.
- XTV requires no special hardware and no special coding
- techniques to distribute the use of X applications,
- including those using graphics."
-
- Author: Hussein M. Abdel-Wahab, Dept of CS, Old Dominion University
- e-mail: wahab@cs.odu.edu
-
- Author: Kevin Jeffay, Dept of CS, Univ of North Carolina at Chapel Hill
- e-mail: jeffay@cs.unc.edu
-
- ftp: ftp.cs.odu.edu: pub/wahab/XTV.r2.tar.Z
- pub/wahab/xtv.r1.tar.Z
- -----------------------------------------------------------------------------
- shX: Shared X
-
- Description: "Shared X - a modified X library to give dynamic
- multi-display support. It provides "naive" X applications
- with the capability to work with several displays
- simultaneously, dynamically add and remove new displays
- and hand input control from display to display."
-
- Author: Michael P. Altenhofen, CEC Karlsruhe
- e-mail: Altenhofen@kampus.enet.dec.com
-
- ftp: gatekeeper.dec.com: pub/X11/contrib/shX.tar.Z
-
- Modifications to colour mapping and private colour allocation by
- Author: Mark J. Handley, UCL Computer Science
- e-mail: M.Handley@cs.ucl.ac.uk
-
- ftp: cs.ucl.ac.uk: car/shX.car.tar.Z
- -----------------------------------------------------------------------------
- wscrawl: Window-scrawl
-
- Description: "The user may think of wscrawl as a paint program
- shared by any number of people at the same time.
- When wscrawl is run, it opens up a separate window on
- each participant's display. Any individual may exit out
- of the session at any time without affecting the other
- participants."
-
- Author: Brian K. Wilson
- e-mail: brianw@apple.com
-
- ftp: sax.stanford.edu: wscrawl.shar.Z
- -----------------------------------------------------------------------------
- xmx: An X Protocol Multiplexor
-
- Description: "XMX is an X protocol multiplexor. It is a standalone
- utility for displaying an X Windows session on multiple
- displays. XMX takes advantage of the networked nature
- of the X Window System by tapping the communication link
- between an X client and an X server. In this way, XMX
- works with any X clients and any X servers, without the
- need to modify either."
-
- Author: John Bazik, Dept of CS, Brown University
- e-mail: jsb@cs.brown.edu
-
- ftp: wilma.cs.brown.edu: pub/xmx.tar.Z
- -----------------------------------------------------------------------------
- shdr: Shared Drawing Tool
-
- Description: "Shdr implements a simple shared whiteboard, with
- scribble-style drawing and text only. It features
- continuous telepointing to both sides, so there's no
- mode switch between marking, pointing and entering text.
- There's no chalk-passing mechanism; both sides can make/
- erase marks at once. The drawing object is replicated on
- both sides, so that the network traffic is reduced."
-
- Author: Paul Dourish, Rank Xerox EuroPARC, Cambridge, UK
- e-mail: dourish@europarc.xerox.com
-
- ftp: parcftp.xerox.com: pub/europarc/shdr.tar.Z
- -----------------------------------------------------------------------------
- GroupSketch:
-
- Description: "Groupsketch is a design tool where multiple users, each
- on their own Sun workstation, can draw simultaneously on
- the screen. All users see the same resulting image.
- Through the use of multiple cursors, the conference
- participants can all draw, erase, or gesture around the
- work surface. Although Groupsketch should run on any Sun
- workstation, it does not run within the window system."
-
- Author: Saul Greenberg, Dept of CS, University of Calgary
- e-mail: saul@cpsc.ucalgary.ca
-
- ftp: cpsc.ucalgary.ca: pub/GroupSketch.tar.Z
- -----------------------------------------------------------------------------
-
- I'm still interested in more replies, regarding both general shared
- desktop systems and more specialized programs that can be used for
- synchronous CSCW, e.g. shared drawings programs and shared editors.
-
- I've also have come across three names of system that I would like to
- know more about, and that's Musk, Xmedia and Matrix. Anybody has some
- information abouts these system, then please e-mail me, so they
- eventually also can be included in the list.
-
- Hopefully I can post a longer summary next time...
-
-
- Thanks in advance,
-
- Peter Cigehn, Telia Research and Lulea University, Sweden
- e-mail: peter@lulea.trab.se
-